{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","feed_url":"https://feed.craftedsignal.io/tags/backup-replication/feed.json","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[{"id":"CVE-2026-44963"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["Veeam Backup \u0026 Replication \u003c 12.3.2.4854"],"_cs_severities":["critical"],"_cs_tags":["remote-code-execution","vulnerability","veeam","backup-replication","data-exfiltration","data-destruction","windows"],"_cs_type":"advisory","_cs_vendors":["Veeam"],"content_html":"\u003cp\u003eCERT-FR has published an advisory regarding a critical remote code execution (RCE) vulnerability, CVE-2026-44963, affecting Veeam Backup \u0026amp; Replication software. This flaw impacts all versions prior to 12.3.2.4854. An unauthenticated attacker can exploit this vulnerability to execute arbitrary code on the underlying operating system where Veeam Backup \u0026amp; Replication is installed. The exploitation of such a vulnerability on a backup server is particularly severe, as these systems often have extensive network access and contain highly sensitive data, including backups of critical organizational assets. Organizations using vulnerable versions are strongly advised to apply the security patch referenced in Veeam's security bulletin kb4869 without delay to prevent potential compromise.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAn unauthenticated attacker identifies a public-facing or internally accessible Veeam Backup \u0026amp; Replication server running a vulnerable version (prior to 12.3.2.4854).\u003c/li\u003e\n\u003cli\u003eThe attacker crafts a specialized malicious request designed to exploit the specific vulnerability (CVE-2026-44963) within the Veeam Backup \u0026amp; Replication service.\u003c/li\u003e\n\u003cli\u003eThe crafted request is sent to the vulnerable Veeam Backup \u0026amp; Replication service, often targeting a specific network endpoint or component.\u003c/li\u003e\n\u003cli\u003eThe vulnerable Veeam service processes the malicious input, leading to a bypass of security controls and successful injection of attacker-controlled code.\u003c/li\u003e\n\u003cli\u003eArbitrary code, specified by the attacker, is executed on the server running Veeam Backup \u0026amp; Replication, typically under the context of the compromised Veeam service.\u003c/li\u003e\n\u003cli\u003eThe attacker gains control over the compromised server, potentially with elevated privileges, enabling them to navigate the internal network.\u003c/li\u003e\n\u003cli\u003eThe attacker leverages access to perform actions such as exfiltrating sensitive backup data, encrypting backups for ransomware deployment, or establishing persistent access within the environment.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2026-44963 leads to full remote code execution on the server hosting Veeam Backup \u0026amp; Replication. This results in the complete compromise of the backup infrastructure, enabling attackers to gain unauthorized access to all backed-up data, potentially delete or encrypt it, and establish a foothold for further lateral movement within the network. The highly sensitive nature of backup environments means an attack could lead to severe data loss, exfiltration of critical business information, significant operational disruption, and regulatory non-compliance. While specific victim counts are not available, the widespread use of Veeam Backup \u0026amp; Replication suggests a broad potential impact across various sectors.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eApply the security update provided by Veeam (kb4869) immediately to patch CVE-2026-44963 on all affected Veeam Backup \u0026amp; Replication servers.\u003c/li\u003e\n\u003cli\u003eDeploy the provided Sigma rules to your SIEM solution to detect potential exploitation attempts and post-exploitation activities.\u003c/li\u003e\n\u003cli\u003eEnsure Sysmon process creation logging is enabled on all servers running Veeam Backup \u0026amp; Replication to capture data for the provided Sigma rules.\u003c/li\u003e\n\u003cli\u003eMonitor network connections originating from Veeam Backup \u0026amp; Replication services for suspicious outbound traffic not aligned with normal backup operations, as highlighted by the network connection rule.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-06-14T09:09:13Z","date_published":"2026-06-14T09:09:13Z","id":"https://feed.craftedsignal.io/briefs/2026-06-veeam-rce/","summary":"A critical remote code execution vulnerability, tracked as CVE-2026-44963, has been discovered in Veeam Backup \u0026 Replication versions prior to 12.3.2.4854, which could allow an unauthenticated attacker to execute arbitrary code on affected systems, leading to full compromise of the backup infrastructure and potential data exfiltration or destruction.","title":"Vulnerability in Veeam Backup \u0026 Replication Allowing Remote Code Execution (CVE-2026-44963)","url":"https://feed.craftedsignal.io/briefs/2026-06-veeam-rce/"}],"language":"en","title":"CraftedSignal Threat Feed - Backup-Replication","version":"https://jsonfeed.org/version/1.1"}