{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata — refreshed continuously.","feed_url":"https://feed.craftedsignal.io/tags/sonicwall/","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cves":[{"cvss":8,"id":"CVE-2026-0204"},{"cvss":6.8,"id":"CVE-2026-0205"},{"cvss":4.9,"id":"CVE-2026-0206"}],"_cs_exploited":true,"_cs_products":["SonicOS"],"_cs_severities":["high"],"_cs_tags":["sonicwall","vulnerability","privilege-escalation","denial-of-service"],"_cs_type":"threat","_cs_vendors":["SonicWall"],"content_html":"\u003cp\u003eSonicWall SonicOS is susceptible to multiple vulnerabilities that could allow an attacker to gain elevated privileges, circumvent security controls, or trigger a denial-of-service (DoS) condition. While the specific nature of these vulnerabilities is not detailed in the advisory, the potential impact on affected SonicWall appliances is significant. Exploitation of these flaws could lead to unauthorized access to sensitive data, disruption of network services, and compromise of the overall security posture. Defenders should promptly investigate and apply any available patches or mitigations to address these vulnerabilities and prevent potential exploitation.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003cp\u003eDue to lack of specifics in the advisory, the following is a generalized attack chain:\u003c/p\u003e\n\u003col\u003e\n\u003cli\u003eAn attacker identifies a vulnerable SonicWall appliance running SonicOS. This could be through vulnerability scanning or public disclosure of a zero-day exploit.\u003c/li\u003e\n\u003cli\u003eThe attacker crafts a malicious request or payload specifically designed to exploit one of the unknown vulnerabilities in SonicOS. This may involve exploiting a weakness in the web management interface, VPN services, or other network protocols.\u003c/li\u003e\n\u003cli\u003eThe attacker sends the crafted payload to the vulnerable SonicWall appliance over the network.\u003c/li\u003e\n\u003cli\u003eThe vulnerable appliance processes the malicious payload, leading to a privilege escalation. The attacker gains administrative access to the SonicWall device.\u003c/li\u003e\n\u003cli\u003eWith elevated privileges, the attacker modifies firewall rules, VPN configurations, or other security settings to bypass existing security measures.\u003c/li\u003e\n\u003cli\u003eAlternatively, the attacker exploits a different vulnerability that causes a denial-of-service condition, disrupting network connectivity and availability. This might involve crashing the device or overwhelming it with traffic.\u003c/li\u003e\n\u003cli\u003eThe attacker leverages their access to gain a foothold in the internal network, potentially launching further attacks against other systems.\u003c/li\u003e\n\u003cli\u003eThe attacker exfiltrates sensitive data, deploys malware, or performs other malicious activities, depending on their objectives.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of these vulnerabilities could result in significant damage. An attacker gaining elevated privileges could compromise the entire network, potentially impacting hundreds or thousands of users. A denial-of-service condition could disrupt critical business operations, leading to financial losses and reputational damage. The lack of specific details makes it difficult to quantify the exact scope of impact, but the potential for widespread disruption is substantial.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMonitor network traffic for suspicious activity targeting SonicWall devices and investigate any anomalies (network_connection logs).\u003c/li\u003e\n\u003cli\u003eImplement strict access controls to the SonicWall management interface to limit exposure to potential attackers.\u003c/li\u003e\n\u003cli\u003eDeploy the generic Sigma rule to detect common web exploits (webserver logs).\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-04-30T09:57:25Z","date_published":"2026-04-30T09:57:25Z","id":"/briefs/2026-05-sonicwall-multiple-vulns/","summary":"Multiple vulnerabilities in SonicWall SonicOS allow a remote attacker to escalate privileges, bypass security measures, or cause a denial-of-service condition.","title":"Multiple Vulnerabilities in SonicWall SonicOS Allow Privilege Escalation and DoS","url":"https://feed.craftedsignal.io/briefs/2026-05-sonicwall-multiple-vulns/"},{"_cs_actors":[],"_cs_cves":[{"cvss":8,"id":"CVE-2026-0204"},{"cvss":6.8,"id":"CVE-2026-0205"},{"cvss":4.9,"id":"CVE-2026-0206"}],"_cs_exploited":false,"_cs_products":["SOHOW","TZ 300","TZ 300W","TZ 400","TZ 400W","TZ 500","TZ 500W","TZ 600","NSA 2650","NSA 3600","NSA 3650","NSA 4600","NSA 4650","NSA 5600","NSA 5650","NSA 6600","NSA 6650","SM 9200","SM 9250","SM 9400","SM 9450","SM 9600","SM 9650","TZ 300P","TZ 600P","SOHO 250","SOHO 250W","TZ 350","TZ 350W","TZ270","TZ270W","TZ370","TZ370W","TZ470","TZ470W","TZ570","TZ570W","TZ570P","TZ670","NSa 2700","NSa 3700","NSa 4700","NSa 5700","NSa 6700","NSsp 10700","NSsp 11700","NSsp 13700","NSsp 15700","NSv 270","NSv 470","NSv 870","NSv870 sous ESX","NSv870 sous KVM","NSv870 sous HYPER-V","NSv870 sous AWS","NSv870 sous Azure","TZ80","TZ280","TZ380","TZ480","TZ580","TZ680","NSa 2800","NSa 3800","NSa 4800","NSa 5800"],"_cs_severities":["medium"],"_cs_tags":["sonicwall","firewall","dos","security_bypass"],"_cs_type":"advisory","_cs_vendors":["SonicWall"],"content_html":"\u003cp\u003eOn April 30, 2026, CERT-FR published an advisory regarding multiple vulnerabilities affecting various SonicWall firewall products. These vulnerabilities, detailed in SonicWall security bulletin SNWLID-2026-0004, could allow an unauthenticated remote attacker to trigger a denial-of-service condition or bypass security policies. The affected products include a wide range of SonicWall firewalls across multiple generations (Gen 6, Gen 7, and Gen 8), as well as NSv virtual firewalls deployed in ESX, KVM, Hyper-V, AWS, and Azure environments. Successful exploitation of these vulnerabilities could lead to significant disruption of network services and a compromise of security controls.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eThe attacker identifies a vulnerable SonicWall firewall exposed to the internet.\u003c/li\u003e\n\u003cli\u003eThe attacker sends a specially crafted network packet to the firewall. This packet exploits one of the vulnerabilities (CVE-2026-0204, CVE-2026-0205, or CVE-2026-0206).\u003c/li\u003e\n\u003cli\u003eIf the attacker exploits a DoS vulnerability, the firewall\u0026rsquo;s CPU and memory resources are consumed, leading to a denial-of-service condition.\u003c/li\u003e\n\u003cli\u003eLegitimate network traffic is disrupted due to the firewall\u0026rsquo;s degraded performance or complete failure.\u003c/li\u003e\n\u003cli\u003eIf the attacker exploits a security policy bypass vulnerability, they can potentially gain unauthorized access to internal network resources.\u003c/li\u003e\n\u003cli\u003eThe attacker may then attempt to move laterally within the network, exploiting additional vulnerabilities in other systems.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of these vulnerabilities could lead to a complete denial of service, disrupting network connectivity for affected organizations. A security policy bypass could also allow unauthorized access to sensitive internal resources. The number of potential victims is significant, given the widespread use of SonicWall firewalls across various industries.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eApply the patches outlined in SonicWall security bulletin SNWLID-2026-0004 to all affected SonicWall firewalls immediately.\u003c/li\u003e\n\u003cli\u003eMonitor network traffic for suspicious activity targeting SonicWall firewalls.\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rules below to your SIEM to detect potential exploitation attempts in your environment.\u003c/li\u003e\n\u003cli\u003eReview and enforce strict network segmentation policies to limit the impact of a potential security policy bypass.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-04-30T00:00:00Z","date_published":"2026-04-30T00:00:00Z","id":"/briefs/2026-04-sonicwall-vulns/","summary":"Multiple vulnerabilities in SonicWall firewalls could allow an attacker to cause a remote denial of service and security policy bypass, potentially disrupting network services and compromising security controls.","title":"Multiple Vulnerabilities in SonicWall Products Allow for DoS and Security Policy Bypass","url":"https://feed.craftedsignal.io/briefs/2026-04-sonicwall-vulns/"},{"_cs_actors":[],"_cs_cves":[],"_cs_exploited":false,"_cs_products":[],"_cs_severities":["high"],"_cs_tags":["sonicwall","email security","xss","dos","data manipulation"],"_cs_type":"advisory","_cs_vendors":[],"content_html":"\u003cp\u003eMultiple vulnerabilities in the SonicWall Email Security Appliance allow a remote, authenticated attacker with administrative privileges to perform various malicious actions. This includes cross-site scripting (XSS) attacks, data manipulation, and denial-of-service (DoS) conditions. This poses a significant threat to organizations using the affected appliance as it can lead to data breaches, service disruption, and unauthorized access. Defenders should prioritize patching and implementing detection mechanisms to mitigate these risks, though no version information or CVEs are given.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eThe attacker gains initial access to the SonicWall Email Security Appliance with administrative privileges through compromised credentials or exploiting an authentication bypass vulnerability.\u003c/li\u003e\n\u003cli\u003eThe attacker leverages a cross-site scripting (XSS) vulnerability to inject malicious scripts into web pages viewed by other administrators.\u003c/li\u003e\n\u003cli\u003eThe injected XSS scripts execute within the context of other administrator sessions, allowing the attacker to steal credentials or perform actions on their behalf.\u003c/li\u003e\n\u003cli\u003eThe attacker exploits a data manipulation vulnerability to modify sensitive data stored within the appliance, potentially altering email configurations or security settings.\u003c/li\u003e\n\u003cli\u003eThe attacker exploits a separate vulnerability to trigger a denial-of-service (DoS) condition, rendering the email security appliance unavailable to users.\u003c/li\u003e\n\u003cli\u003eThe DoS condition disrupts email flow, preventing users from sending or receiving messages.\u003c/li\u003e\n\u003cli\u003eThrough data manipulation and XSS, the attacker gains persistent control over the Email Security Appliance.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of these vulnerabilities could lead to unauthorized access to sensitive email data, manipulation of email security settings, and complete disruption of email services. The lack of specifics makes it impossible to determine the exact number of victims or specific sectors targeted. However, any organization using the SonicWall Email Security Appliance is potentially at risk. This can result in significant financial losses, reputational damage, and legal liabilities.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMonitor SonicWall Email Security Appliance logs for suspicious activity indicative of unauthorized access or data manipulation.\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rule to detect potential XSS attacks against the SonicWall Email Security Appliance web interface.\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rule to detect unauthorized changes to system files commonly associated with data manipulation attacks.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-04-01T10:39:09Z","date_published":"2026-04-01T10:39:09Z","id":"/briefs/2024-01-sonicwall-email-security-vulns/","summary":"A remote, authenticated attacker with administrator rights can exploit multiple vulnerabilities in SonicWall Email Security Appliance to perform cross-site scripting, manipulate data, or cause a denial-of-service.","title":"SonicWall Email Security Appliance Multiple Vulnerabilities","url":"https://feed.craftedsignal.io/briefs/2024-01-sonicwall-email-security-vulns/"}],"language":"en","title":"CraftedSignal Threat Feed — Sonicwall","version":"https://jsonfeed.org/version/1.1"}