Network

Detection logic for identifying first-time client IP addresses issuing destructive MongoDB administrative commands often used in wipe-and-extort data destruction campaigns.

Detection of unauthorized NFS client access where a remote system asserts root-equivalent (UID 0) privileges over weak RPC/UNIX authentication, facilitating data collection and traversal.

An unauthenticated attacker can exploit an unbounded RECONNECT_REQUEST forwarding vulnerability in QTINeon's NeonRelay component to amplify denial-of-service attacks against a connected host. By sending spoofed RECONNECT_REQUEST packets, the relay forwards each one to the host without proper deduplication or rate limiting, consuming host resources. Additionally, excessive spoofed IPs can reset legitimate rate limiting, further impacting service availability. This vulnerability affects Java, Python, and TypeScript implementations of NeonRelay.

A critical vulnerability has been identified in VeloCloud Orchestrator (VCO) On-Prem that allows for remote code execution, enabling a remote attacker to gain privileged access, execute arbitrary commands on the VCO host, and potentially install programs, modify or delete data, or create new user accounts with administrative rights, with impact severity depending on the service account privileges.

A flaw in the Event-Driven Ansible (EDA) server's ExternalEventStreamViewSet allows an unauthenticated attacker to bypass mTLS authentication by spoofing the Subject HTTP header, enabling injection of arbitrary events into mTLS-protected streams and triggering downstream automation actions, while also leaking the expected certificate Distinguished Name in 403 error responses.

The DUCKTAIL threat actor leverages Chromium-based web browsers (such as Microsoft Edge and Chrome) running in headless mode with the `--dump-dom` argument to stealthily download malicious content from the internet via suspicious file-sharing domains, impacting compromised endpoints.

A detection identifies suspicious installations of Python packages, leveraging Cisco NVM flow telemetry to monitor `pip` or `poetry` commands making outbound connections to public repositories for package names resembling known typosquats, indicating potential malicious software supply chain compromise.

A denial-of-service vulnerability in py-libp2p versions up to 0.6.0 allows an authenticated attacker to send a specially crafted 12-byte DATA or SYN frame with an oversized length field, causing the victim's yamux read loop to block indefinitely and freezing all streams on the affected connection.

A critical authentication bypass vulnerability in Pheditor versions prior to 2.0.8 allows an unauthenticated attacker to gain full administrative access by exploiting a flaw in the forced password-change flow, enabling them to set an arbitrary new admin password and obtain an authenticated session without knowing the current one.

An unauthenticated attacker can steal REST datasource credentials, including Bearer/Basic tokens and static headers, from Budibase applications due to a critical cross-origin authentication leak (GHSA-mqhr-6j6h-74p5) where the application attaches stored credentials to outgoing requests without validating the destination host, allowing exfiltration to an attacker-controlled server.

A vulnerability in the Apache Tomcat mod_jk Connector allows a remote, unauthenticated attacker to bypass security measures or disclose sensitive information, which could enable an adversary to gain unauthorized access or collect confidential data.

A critical vulnerability in Mitel MiCollab allows a remote, unauthenticated attacker to execute arbitrary code, which could lead to full system compromise or further network penetration.

A DNSSEC validating resolver, specifically BIND 9 versions within the ranges 9.11.0-9.18.50, 9.20.0-9.20.24, 9.21.0-9.21.23, and their S1 variants, is vulnerable to a denial-of-service attack where an attacker can launch a random subdomain attack against a DNSSEC-signed zone by sending queries faster than the resolver can perform validation, leading to runaway memory usage and potentially exceeding configured limits by orders of magnitude.

Multiple vulnerabilities in Aruba AOS-CX can be exploited by an attacker to bypass security measures, execute arbitrary code, and manipulate files, which could lead to compromise of the network device.

An attacker with write access to a Gitea repository can bypass branch protection rules by exploiting a logic flaw, obtaining an 'official' approval on a pull request (PR) targeting an unprotected branch, then retargeting the PR to a protected branch, preserving the stale approval and leading to unauthorized code merges and privilege escalation.

This threat brief details how Linux systems making DNS queries to commonly abused top-level domains may indicate malware-related command and control (C2) communications, data exfiltration, or payload downloads, often blending into normal name resolution, signaling a potential compromise of servers, workstations, or containerized workloads.

FreeRDP before version 3.28.0 contains a heap-based buffer overflow in the `crypto_rsa_common()` function, exploitable pre-authentication by an unauthenticated attacker crafting a malicious ciphertext to cause a denial of service on the server when a client uses RDP Standard Security.

Multiple vulnerabilities in Extreme Networks ExtremeXOS can be exploited by a remote, authenticated attacker to achieve privilege escalation, bypass security controls, and manipulate data on affected network devices.

Multiple vulnerabilities exist in CoreDNS that allow a remote, unauthenticated attacker to execute a Denial of Service (DoS) attack against the service, potentially leading to service disruption and unavailability for affected systems utilizing CoreDNS.

A vulnerability in Envoy Gateway, when operating in GatewayNamespaceMode, allows unauthenticated access to the xDS gRPC server on port 18000. This is due to a missing unary interceptor and an authentication bypass in the JWT interceptor that fails to validate specific message types (DiscoveryRequest). Any pod within the cluster can exploit this flaw using the State-of-the-World (SotW) xDS protocol to retrieve sensitive information, including TLS private keys, all xDS resources, backend endpoints, and routing rules.

An unauthenticated network attacker can exploit a Server-Side Request Forgery (SSRF) vulnerability, identified as CVE-2026-63086, in the OpenAI-compatible multimodal chat completions endpoint of text-generation-inference through version 3.3.7 to coerce the server into issuing arbitrary HTTP GET requests, enabling internal port scanning and credential theft from internal services and cloud instance metadata endpoints.

An unauthenticated, remote attacker can exploit a vulnerability in F5 BIG-IP and BIG-IP Next to perform a Denial of Service attack, potentially disrupting services.

Multiple vulnerabilities in Red Hat Quay allow a remote, authenticated attacker to execute arbitrary code and perform Server-Side Request Forgery (SSRF) attacks.

Pomerium proxy deployments using the stateless authentication flow (Pomerium Zero or hosted authenticate) are vulnerable to a pre-authentication memory exhaustion denial of service, allowing an unauthenticated attacker to send specially crafted HPKE-encrypted zstd payloads to the `/.pomerium/callback` endpoint, leading to excessive memory allocation and potential proxy crashes.

Unauthenticated attackers can exploit a Directory Traversal vulnerability (CVE-2026-12997) in the Gravity Forms plugin for WordPress, affecting all versions up to and including 2.10.4, to read arbitrary files on the server and receive their contents as an email attachment, potentially exfiltrating sensitive information.

A memory exhaustion vulnerability, CVE-2026-62389, exists in the 'ws' WebSocket library versions prior to 8.21.1, allowing attackers to exhaust server memory via incomplete fragmented WebSocket messages and cause denial of service.

PraisonAI versions prior to 4.6.78 contain an authentication bypass vulnerability, CVE-2026-61427, in the MCP HTTP-stream transport, allowing unauthenticated clients to establish sessions, enumerate tools, and invoke tools, potentially leading to remote code execution if the server is bound to a network-accessible address.

An attacker can exploit multiple vulnerabilities within the Netty framework to bypass security checks, manipulate requests or headers, circumvent certificate validations, and cause a denial of service.

A missing authorization vulnerability (CVE-2026-15752) exists in the /api/v1/users/ endpoint of zhinianboke xianyu-auto-reply, affecting versions up to commit dcb445ad97816ad65299a7580ee0c8c8f929da84, allowing a remote attacker to bypass authentication or authorization checks. An exploit for this vulnerability has been made public, and organizations using this product should apply the patch named 19fc3282a1bb78a05c34945c088525d20e081cbd to mitigate the risk.

A high-severity vulnerability, CVE-2026-61699, in ForgeKeep's nebula-mesh allows compromised or offboarded hosts to bypass certificate revocation, enabling attackers to maintain full mesh network access for up to 365 days despite operator actions.

An authenticated Tailscale user can bypass IP-based access controls, rate limiting, and manipulate audit logs by injecting arbitrary X-Forwarded-For or X-Real-IP headers into proxied requests via `tsdproxy`. This vulnerability stems from `tsdproxy`'s failure to strip these headers before forwarding them, allowing an attacker to spoof their source IP address. This is particularly impactful when `tsdproxy` is the sole enforcement point for backend services, enabling actions such as gaining unauthorized admin access to backend applications.

A vulnerability in OpenWrt's luci-app-samba4, identified as CVE-2026-59260, allows authenticated delegated users to achieve remote command execution on the Samba daemon by leveraging improper ACLs that grant `file.exec` permission on `/usr/sbin/smbd`.

CVE-2026-15480 describes a stack-based buffer overflow vulnerability in the Trendnet TEW-635BRM router firmware, specifically in the start_httpd function within the /sbin/rc component's Web Service, which can be exploited remotely by manipulating the 'device_name' argument, potentially leading to arbitrary code execution; an exploit is publicly available, but the product is End-of-Life (EOL) since 2011, and the vendor advises users to switch devices.

The WP Ultimate CSV Importer - WordPress Import & Export for CSV, XML & Excel plugin for WordPress, versions up to and including 8.0.1, is vulnerable to Remote Code Execution due to missing capability checks on specific AJAX handlers and exposure of the plugin's nonce, allowing authenticated attackers with subscriber-level access to execute arbitrary code on the server.

Lucee CFML Server versions across the 5.3.x, 6.1.x, 6.2.x, and 7.0.x release lines are vulnerable to a reflected cross-site scripting (XSS) flaw in URL path parsing, allowing unauthenticated remote attackers to embed arbitrary HTML or JavaScript payloads within the request path which, when visited by a victim, enables the execution of arbitrary JavaScript in the victim's browser for purposes such as session hijacking or unauthorized actions against the Lucee administrative interface.

A critical server-side request forgery (SSRF) vulnerability, CVE-2026-15330, exists in zhayujie CowAgent up to version 2.1.1, allowing remote attackers to manipulate the 'image' argument in the Vision Tool component's `_build_image_content` or `_download_to_data_url` functions to access internal resources or conduct port scanning.

A vulnerability, CVE-2026-57028, in Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to gain unauthorized access to internal license management processes via an exposed internal port, leading to license exhaustion and ultimately a denial-of-service condition.

An unauthenticated, network-based attacker can exploit CVE-2026-57026, an improper input validation vulnerability, in the SIP plugin of Juniper Networks Junos OS. If the SIP ALG is enabled on affected MX Series with SPC3 or SRX Series devices, processing a malformed SIP invite packet will cause the flow processing daemon (flowd) to crash and restart, leading to a complete denial of service until the system recovers.

An Improper Validation of Specified Quantity in Input vulnerability (CVE-2026-57023) in the TCP proxy plugin of Juniper Networks Junos OS on MX Series with SPC3 and SRX Series allows an unauthenticated, network-based attacker to cause a complete Denial of Service (DoS) by sending a specifically malformed TCP header packet, crashing the flow processing daemon (flowd) until automated recovery.

CVE-2026-58122 describes an authentication bypass vulnerability in Hermes WebUI before version 0.51.307, allowing unauthenticated remote attackers to bypass local-origin IP restrictions on onboarding endpoints by spoofing the X-Forwarded-For header with a loopback address, leading to server-side request forgery (SSRF), API key overwrites, and persistent access token acquisition.

A null pointer dereference vulnerability (CVE-2026-60109) exists in Zeek's Kerberos protocol analyzer before version 8.0.9, allowing unauthenticated remote attackers to crash a Zeek sensor by sending a specially crafted KRB_ERROR message with error-code 25 and specific PA-DATA elements, leading to a denial-of-service condition.

Multiple vulnerabilities exist in Juniper JUNOS, JUNOS Evolved, and various Juniper network device series (EX, MX, QFX, SRX), allowing an attacker to achieve denial of service, disclose sensitive information, execute arbitrary code, or trigger undefined system behavior.

A critical vulnerability in `zalando/skipper`'s OpenPolicyAgent integration, tracked as GHSA-659f-rgp5-w4wf, allows attackers to bypass `opaAuthorizeRequestWithBody` policies using HTTP/1.1 `Transfer-Encoding: chunked` or HTTP/2 requests lacking a `content-length` pseudo-header, leading to unauthorized access to upstream services with uninspected payloads.

An integer underflow vulnerability (CVE-2026-29008) in U-Boot's `tcp_rx_state_machine()` function allows a network-adjacent attacker to crash the bootloader by sending a crafted TCP SYN+ACK packet, potentially preventing device boot and leading to memory corruption.

Palo Alto Networks has disclosed multiple buffer overflow vulnerabilities (CVE-2026-0288) in their PAN-OS User-ID Terminal Server Agent (TSA) component, which an unauthenticated attacker with network access can exploit by sending specially crafted network traffic to cause a denial of service (DoS) or potentially achieve arbitrary code execution, affecting various versions of PAN-OS, Cloud NGFW, and Prisma Access if the TSA is exposed to untrusted networks.

Multiple denial of service vulnerabilities, tracked as CVE-2026-0287, in Palo Alto Networks PAN-OS software allow an unauthenticated attacker to cause a DoS condition by sending specially crafted network traffic, potentially forcing the firewall into maintenance mode.

Multiple vulnerabilities, including CVE-2026-12352 (incorrect authorization) and CVE-2026-12948 (stored cross-site scripting), affect Digi International PortServer TS, Digi One SP, Digi One SP IA, and Digi One IA devices with firmware prior to 2025, allowing unauthenticated bypass, access to restricted resources, credential acquisition, and client-side script execution in critical infrastructure environments.

Formie Hidden fields in versions prior to 3.1.27 are vulnerable to Server-Side Template Injection (SSTI), allowing an unauthenticated attacker to inject Twig syntax into request-derived default values, potentially leading to remote code execution, sensitive information disclosure, or application state modification.

Multiple vulnerabilities in OpenSSH versions prior to 10.4 allow attackers to bypass security policies, cause denial of service, and exploit other unspecified security issues, requiring users to update to OpenSSH 10.4 or later.

This brief identifies inbound ICMP Timestamp (type 13) or Information (type 15) requests originating from external IP addresses and targeting internal RFC1918 destinations, a legacy diagnostic activity commonly associated with host and path fingerprinting during reconnaissance, active scanning, or OS fingerprinting efforts by an unidentified actor, indicating a potential prelude to more severe attacks.

This rule identifies successful outbound TLS sessions initiated by internal hosts to external destinations that utilize deprecated protocol versions (SSLv3, TLS 1.0, TLS 1.1) or weak cipher suites such as RC4, 3DES, NULL, EXPORT, or anonymous Diffie-Hellman. Such negotiations can indicate an Adversary-in-the-Middle attack or communication with legacy malware, allowing for traffic interception or decryption. Detection engineers should investigate the `source.ip`, `destination.ip`, `tls.version`, and `tls.cipher` to determine if the destination is a legitimate legacy system or a potential compromise, checking for concurrent alerts on the source host.

This brief details the risk of VNC (Virtual Network Computing) traffic originating from internal networks and destined for the internet, indicating potential unauthorized access or a backdoor, as VNC is frequently exploited by threat actors when exposed externally via specific TCP ports (5800-5810).

This brief detects unauthorized Virtual Network Computing (VNC) traffic originating from the Internet and targeting internal network segments on TCP ports 5800-5810, indicating potential initial access or backdoor exploitation by threat actors leveraging exposed VNC services.

Threat actors frequently exploit internet-exposed Remote Procedure Call (RPC) services, primarily on port TCP/135, as an initial access or backdoor vector, leading to unauthorized system access, internal network compromise, and potentially data exfiltration or ransomware deployment.

The BadPatch malware family utilizes SMTP on TCP port 26 for covert command and control of Windows systems, an atypical port for SMTP, posing a significant risk of unauthorized access and data exfiltration.

A detection rule identifies suspicious outbound IPSEC NAT Traversal (NAT-T) tunnels, characterized by UDP traffic where both source and destination ports are 4500, originating from an internal host to an external destination, a technique frequently abused by threat actors to establish covert command and control channels or exfiltrate data while evading network defenses.

Detection rule identifies inbound Windows file sharing (SMB/CIFS) traffic originating from the Internet to internal hosts, posing a critical initial access risk due to potential exploitation of vulnerabilities like CVE-2017-0144 (EternalBlue).

This brief details the detection of new local user creation on Fortinet FortiGate firewalls, a behavior often leveraged by adversaries for persistence and unauthorized VPN access, underscoring a critical post-exploitation activity for detection engineers.

This brief describes a detection for the addition of new firewall policies on Fortinet FortiGate devices, a behavior that can indicate defense impairment or unauthorized network access by a malicious actor.

This brief details the detection of suspicious DNS queries from non-Telegram processes to api.telegram.org on Windows systems, a strong indicator of malware utilizing the Telegram Bot API for command and control (C2) communications to receive commands or exfiltrate data.

An authentication bypass vulnerability (CVE-2026-53817) in OpenClaw's Control UI pairing mechanism allows an attacker with existing network/authentication foothold in LAN/shared-token deployments to spoof locality information, leading to the acquisition of a durable admin-capable device token that grants persistent administrative access, even after shared gateway tokens are rotated.

A remote unauthenticated attacker can exploit CVE-2026-52736 in Zebra's `zebrad` node (versions up to and including `v4.4.1`) to permanently stall a targeted blockchain node by poisoning its sent-hash cache, leading to a denial of service.

Multiple vulnerabilities in WatchGuard Firebox appliances allow a remote, unauthenticated attacker to execute arbitrary code, cause a denial of service, manipulate or disclose data, and perform Cross-Site Scripting attacks, necessitating immediate patching to mitigate critical risks.

A critical pre-authentication remote code execution (RCE) vulnerability, CVE-2026-46495, exists in OpenDJ Community Edition affecting versions up to 5.1.0, where a deserialization of untrusted data issue in the JMX RMI connector allows unauthenticated attackers with TCP reachability to the JMX listener to execute arbitrary Java objects, potentially leading to full system compromise.

A remote, unauthenticated attacker can exploit a vulnerability in dnsmasq to initiate a Denial of Service attack, disrupting the service's availability.

An unauthenticated OS command injection vulnerability, CVE-2026-58457, exists in the Shenzhen Aitemi M300 Wi-Fi Repeater (hardware model MT02), allowing network-adjacent attackers to execute arbitrary shell commands and gain full root-level control by injecting unsanitized input into the `smacfilter_conf` handler's GET parameters within the `commuos` web backend.

AiOPMSD Final 1.0.0 is vulnerable to SQL injection via the 'id' parameter in the watch.php script, allowing unauthenticated attackers to send crafted GET requests with SQL payloads to extract sensitive database information.

MoviePilot v2 is vulnerable to server-side request forgery (SSRF) in the image proxy endpoint, allowing authenticated attackers to request arbitrary URLs, enumerate internal services, and exfiltrate data from internal network resources by bypassing internal network protections.

Microsoft published information regarding CVE-2026-46153, a vulnerability in 8021q that allows deleting cleared egress QoS mappings.

CVE-2026-46833 allows an unauthenticated attacker with network access via TLS to compromise the Net Service component of Oracle Database Server versions 23.4.0 through 23.26.2, potentially leading to takeover of the Net Service and significant impact on other products.

CVE-2026-46824 allows a low-privileged attacker with network access via HTTP to compromise Oracle Universal Work Queue versions 12.2.3-12.2.15, potentially leading to takeover and impact on additional products.

CVE-2026-46775 is a critical vulnerability in Oracle REST Data Services (Core component) versions 24.2.0-26.1.0, allowing a low-privileged attacker with network access via HTTPS to achieve complete takeover of the service and potentially impact other products.

This analytic identifies ICMP traffic to external IP addresses with total bytes greater than 1,000 bytes, leveraging the Network_Traffic data model to detect potential information smuggling, covert communication, or command-and-control (C2) activities.

This analytic detects instances where prohibited network traffic is allowed, highlighting potential misconfigurations or policy violations that could lead to unauthorized access or data exfiltration, ultimately allowing attackers to bypass network defenses.

This analytic identifies potentially unauthorized devices attempting to connect to an organization's network by inspecting DHCP request packets and comparing MAC addresses against a list of known authorized devices.

This analytic detects a correlation between privileged account creation on Cisco IOS devices and subsequent inbound SSH connections to non-standard ports or sshd_operns, indicating persistence establishment following initial compromise.

Attackers create privileged accounts on Cisco IOS devices and then execute commands remotely via HTTP to gain privileged access.

This analytic identifies web requests to domains that closely resemble a monitored brand's domain, indicating potential brand abuse indicative of phishing or malware distribution attempts.

This analytic detects internal systems generating an unusually high volume of intrusion detections within a 30-minute window using Cisco Secure Firewall Threat Defense logs, identifying hosts triggering more than 15 Snort-based signatures, which may indicate suspicious activity like malware execution, command-and-control communication, vulnerability scanning, or lateral movement.

CVE-2026-46099 describes a vulnerability in the IPv6 network stack related to NOREF dst use in seg6 and rpl lwtunnels, requiring a security update to address potential exploitation.

CVE-2026-9397 describes an improper authorization vulnerability in Besen BS20 EV Charging Station up to version 20260426, allowing remote attackers to gain unauthorized privileges via the OTA Update Installation Handler.

Network-AI is vulnerable to an unauthenticated cross-origin attack due to an empty default secret and permissive CORS configuration, allowing an attacker to lure a user to a malicious web page and invoke MCP tools like config_set, agent_spawn, and blackboard_write against a default-configured localhost server.

Multiple vulnerabilities in ABB B&R PCs, specifically within the EDK2 Network Package, can be exploited by a network attacker to execute remote code, initiate DoS attacks, conduct DNS cache poisoning, or extract sensitive information (CVE-2023-45229, CVE-2023-45230, CVE-2023-45231, CVE-2023-45232, CVE-2023-45233, CVE-2023-45234, CVE-2023-45235, CVE-2023-45236, CVE-2023-45237).

CVE-2026-20171 describes a vulnerability in the Border Gateway Protocol (BGP) enforce-first-as feature of Cisco Nexus 3000 and 9000 Series Switches that could allow an unauthenticated, remote attacker to trigger BGP peer flaps, resulting in a denial-of-service (DoS) condition.

An integer underflow vulnerability, CVE-2026-37459, in FRRouting (FRR) versions stable/10.0 to stable/10.6 allows a remote attacker to cause a Denial of Service (DoS) by sending a crafted BGP UPDATE message.

A denial-of-service vulnerability, identified as CVE-2026-37458, exists in the MP_REACH_NLRI component of FRRouting versions stable/10.0 to stable/10.6, where authenticated attackers can trigger a DoS by sending a crafted UPDATE message due to missing input validation.

An anonymous remote attacker can exploit a vulnerability in Huawei routers to disclose sensitive information, potentially leading to administrative access.

A remote, anonymous attacker can exploit a vulnerability in the Cisco Catalyst SD-WAN Controller to gain administrator rights and manipulate the network configuration.

An unauthenticated, adjacent attacker can disrupt Palo Alto Networks Prisma SD-WAN ION devices by sending a specially crafted IPv6 packet, leading to a denial-of-service condition.

CVE-2026-0264 is a heap-based buffer overflow vulnerability in Palo Alto Networks PAN-OS DNS proxy and DNS server features, allowing an unauthenticated attacker with network access to cause denial of service or potentially execute arbitrary code by sending crafted network traffic.

CVE-2026-0265 is an authentication bypass vulnerability in Palo Alto Networks PAN-OS when Cloud Authentication Service (CAS) is enabled, allowing an unauthenticated attacker with network access to bypass authentication controls, impacting confidentiality, integrity, and availability.

CVE-2026-0239 is an information disclosure vulnerability in Chronosphere Chronocollector versions earlier than v0.116.0, allowing an unauthenticated attacker with network access to retrieve sensitive information.

CVE-2026-0258 is a medium severity server-side request forgery (SSRF) vulnerability in Palo Alto Networks PAN-OS that allows an unauthenticated attacker to cause the firewall to send network requests to unintended destinations, potentially leading to a denial of service (DoS).

HPE published security advisories addressing vulnerabilities in ArubaOS versions AOS-10.8.x.x, AOS-10.7.x.x, AOS-10.4.x.x, AOS-8.13.x.x, AOS-8.12.x.x, and AOS-8.10.x.x, as well as Aruba Networking AOS-8 Instant AP and AOS-10 AP, potentially allowing unauthorized access and control.

Multiple vulnerabilities in ArubaOS allow an attacker to execute arbitrary code, perform cross-site scripting attacks, or cause a denial-of-service condition.

A remote, authenticated attacker can exploit a vulnerability in Fortinet FortiAnalyzer and FortiManager to perform a denial-of-service attack, disrupting normal operations.

CVE-2026-35438 is a missing authorization vulnerability in Windows Admin Center that allows an authorized attacker to elevate privileges over a network.

CVE-2026-23276 is a net vulnerability affecting tunnel xmit functions, requiring a fix to add an xmit recursion limit.

An unauthenticated remote code execution vulnerability exists in the PAN-OS Authentication Portal (Captive Portal) service, potentially allowing attackers to execute arbitrary code with root privileges on PA-Series and VM-Series firewalls by sending crafted network packets.

An unauthenticated remote attacker can cause a denial-of-service condition on Cisco Crosswork Network Controller and Network Services Orchestrator by exhausting connection resources via a high volume of connection requests.

Synway SMG Gateway Management Management Software is vulnerable to unauthenticated OS command injection via crafted POST requests to the RADIUS configuration endpoint, leading to remote code execution.

A vulnerability in OpenSSH could allow for authentication bypass, potentially granting an attacker root access to vulnerable servers running the protocol.

CVE-2026-7036 is a path traversal vulnerability affecting the R7WebsSecurityHandlerfunction in the HTTP Handler component of Tenda i9 version 1.0.0.5(2204), allowing remote attackers to access sensitive files.

A remote attacker can exploit an out-of-bounds read vulnerability in Open Virtual Network (OVN) by sending crafted DHCPv6 SOLICIT packets, leading to sensitive information disclosure.

UAT-4356 is actively targeting Cisco Firepower devices running FXOS, exploiting CVE-2025-20333 and CVE-2025-20362 to deploy the FIRESTARTER backdoor which allows remote access and control by injecting malicious shellcode into the LINA process.

Across DR-810 routers are vulnerable to unauthenticated file disclosure, allowing remote attackers to download the rom-0 backup file containing sensitive information, such as router passwords and configuration data, via a simple GET request to the rom-0 endpoint.

CVE-2026-33797 is an improper input validation vulnerability in Juniper Networks Junos OS and Junos OS Evolved that allows an unauthenticated adjacent attacker to reset established BGP sessions via a specific BGP packet, leading to a denial of service condition.

CVE-2026-33785 allows a low-privileged, local, authenticated user to execute 'request csds' commands on Juniper Junos OS MX Series devices, leading to complete device compromise.

CVE-2021-4477 describes a firewall bypass vulnerability in Hirschmann HiLCOS OpenBAT and BAT450 products that can be exploited by establishing IPv6 IPsec connections (IKEv1 or IKEv2) while using an IPv6 Internet connection, allowing attackers to bypass configured firewall rules.

A denial-of-service vulnerability in Hirschmann HiOS devices allows remote attackers to crash or hang the device by sending crafted UDP EtherNet/IP packets with invalid length fields.

Specially crafted network traffic can cause Suricata to slow down, leading to a denial-of-service condition in versions prior to 7.0.15 and 8.0.4, as identified by CVE-2026-31933.

The Interlock ransomware campaign is targeting enterprise firewalls to encrypt sensitive data and demand ransom payment.

Multiple IDS alerts indicate potential exploitation attempts against Fortigate VPN servers using CVE-2023-27997, alongside traffic from a suspicious user agent, possibly indicating reconnaissance or exploit activity.

Malicious actors are actively exploiting CVE-2026-20127 for initial access and CVE-2022-20775 for privilege escalation and persistence on Cisco SD-WAN systems globally.

CVE-2024-2374 describes an XML External Entity (XXE) vulnerability in multiple WSO2 products, where improperly configured XML parsers allow attackers to inject malicious XML payloads to include external resources, leading to confidential file access, limited HTTP resource access, and denial-of-service attacks.

goshs SimpleHTTPServer prior to version 2.0.0-beta.6 contains an SFTP authentication bypass vulnerability that allows unauthenticated network attackers to access files when the server is started with specific configuration parameters.

This brief focuses on detecting Remote Procedure Call (RPC) traffic originating from the internet, a common initial access vector, by monitoring network connections to TCP port 135 and filtering known internal IP ranges.

Detection of 'no logging message' command usage on Cisco ASA devices, potentially indicating an adversary suppressing security-critical log events to evade detection.

Tenda FH303/A300 firmware V5.07.68_EN contains a session weakness vulnerability (CVE-2018-25318) that allows unauthenticated attackers to modify DNS settings by exploiting insufficient cookie validation, potentially redirecting user traffic to malicious sites.

The n8n-mcp HTTP server had improper authentication in several endpoints, and the health check endpoint leaked sensitive metadata, allowing unauthenticated attackers with network access to disrupt MCP sessions and gather information for further attacks.

This rule identifies potentially unsecured Elasticsearch nodes that lack TLS and/or authentication and are accepting inbound network connections, which could allow adversaries to gain initial access, exfiltrate data, or disrupt services.

This detection identifies potential RDP brute force attacks by monitoring network traffic for RDP application activity by detecting source IPs that have made more than 10 connection attempts to the same RDP port on a host within a one-hour window.

This analytic detects outbound SMB connections from internal hosts to external servers, potentially indicating lateral movement and credential theft attempts.

CVE-2026-34309 is an easily exploitable vulnerability in Oracle PeopleSoft Enterprise PeopleTools versions 8.61-8.62, allowing a low-privileged attacker with network access via HTTP to gain unauthorized access to create, delete, or modify sensitive data.

Detection of a Kubernetes NodePort service creation, potentially exposing internal services to the external network, monitored via Kubernetes Audit logs, and indicating a threat to the Kubernetes infrastructure's integrity and security.

CVE-2026-23818 is an open redirect vulnerability in the HPE Aruba Networking Private 5G Core On-Prem GUI that enables attackers to redirect authenticated users to attacker-controlled login pages to steal credentials.

A remote Denial of Service (DoS) vulnerability exists in GoBGP version 4.2.0 and earlier, where a malformed BGP UPDATE message can trigger a runtime error (index out of range panic), crashing the GoBGP process. This occurs during the processing of 4-byte AS attributes when the message structure causes an internal slice index shift that is not properly handled. A single malicious peer or a malformed route propagated through a transit provider can consistently crash the BGP daemon, leading to a complete loss of routing capabilities.

A heap buffer overflow vulnerability, CVE-2026-33846, exists in the DTLS handshake fragment reassembly logic of GnuTLS, allowing unauthenticated remote attackers to cause application crashes or potential memory corruption by sending crafted DTLS fragments with conflicting message lengths.

CVE-2026-20086 describes a vulnerability in Cisco IOS XE Wireless Controller Software for the Catalyst CW9800 Family, enabling unauthenticated remote attackers to trigger a denial-of-service condition by sending malformed CAPWAP packets that cause the device to reload unexpectedly.

This analytic detects potential reconnaissance on Cisco ASA devices by identifying execution of multiple information-gathering 'show' commands within a short timeframe, indicating potential enumeration by an attacker.

Adversaries may suppress specific log message IDs on Cisco ASA devices using the 'no logging message' command to selectively disable logging of security-critical events and evade detection.

A vulnerability in Cisco ACI Multi-Site CloudSec encryption allows a remote attacker to read or modify intersite encrypted traffic due to a flaw in cipher implementation.

Detection of unauthorized privilege level changes on Cisco ASA devices, potentially indicating privilege escalation or persistence attempts by threat actors.

This rule detects network events indicating the use of Windows file sharing (SMB or CIFS) traffic to the Internet, which is commonly exploited for initial access, backdoor deployment, or data exfiltration.

CVE-2026-21997 allows a low-privileged attacker with network access via HTTP to compromise Oracle Life Sciences Empirica Signal versions 9.2.1-9.2.3, leading to unauthorized data access and modification with potential impact on other products.

Detection of adversaries or malicious insiders disabling logging on a Cisco ASA device via CLI commands, hindering detection and hiding malicious activity.

Detection of AWS Network Access Control List (ACL) deletion using AWS CloudTrail logs, which can remove critical access restrictions, potentially allowing unauthorized access to cloud instances and leading to data exfiltration or further compromise.