{"id":"CVE-2006-5646","aliases":["EUVD-2006-5631","GHSA-cmj2-m79r-9mvg"],"status":"published","title":"Heap-based buffer overflow in Sophos Anti-Virus and Endpoint Security before 6.0.5, Anti-Virus...","description":"Heap-based buffer overflow in Sophos Anti-Virus and Endpoint Security before 6.0.5, Anti-Virus for Linux before 5.0.10, and other platforms before 4.11, when archive scanning is enabled, allows remote attackers to trigger a denial of service (memory corruption) via a CHM file with an LZX decompression header that specifies a Window_size of 0.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.17924,"percentile":0.97198,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-119"],"published":"2006-11-01T15:00:00Z","modified":"2026-06-16T22:31:35Z","exploits":[{"source":"exploitdb","id":"EDB-2910","title":"Sophos AntiVirus - '.CHM' File Heap Overflow (PoC)","type":"dos","platform":"multiple","date":"2006-12-10","verified":true,"url":"https://www.exploit-db.com/exploits/2910"}],"products":[{"vendor":"sophos","product":"anti-virus"},{"vendor":"sophos","product":"endpoint_security"}],"references":[{"url":"http://www.sophos.com/support/knowledgebase/article/7609.html","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://securitytracker.com/id?1017132","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://www.vupen.com/english/advisories/2006/4239","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","Vendor Advisory"]},{"url":"http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=452","tags":["third-party-advisory","x_refsource_IDEFENSE","x_transferred"]},{"url":"http://www.securityfocus.com/bid/20816","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://secunia.com/advisories/22591","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2006-5646"},{"url":"https://github.com/advisories/GHSA-cmj2-m79r-9mvg"}],"sources":{"cve":[{"id":"CVE-2006-5646","description":"Heap-based buffer overflow in Sophos Anti-Virus and Endpoint Security before 6.0.5, Anti-Virus for Linux before 5.0.10, and other platforms before 4.11, when archive scanning is enabled, allows remote attackers to trigger a denial of service (memory corruption) via a CHM file with an LZX decompression header that specifies a Window_size of 0.","status":"published","published":"2006-11-01T15:00:00Z","modified":"2024-08-07T19:55:54.135Z","updated_at":"2026-11-02T14:33:48.500736Z"}],"euvd":[{"id":"EUVD-2006-5631","description":"Heap-based buffer overflow in Sophos Anti-Virus and Endpoint Security before 6.0.5, Anti-Virus for Linux before 5.0.10, and other platforms before 4.11, when archive scanning is enabled, allows remote attackers to trigger a denial of service (memory corruption) via a CHM file with an LZX decompression header that specifies a Window_size of 0.","status":"published","published":"2006-11-01T15:00:00Z","modified":"2024-08-07T19:55:54Z","updated_at":"2026-11-03T01:15:46.66518Z"}],"ghsa":[{"id":"GHSA-cmj2-m79r-9mvg","title":"Heap-based buffer overflow in Sophos Anti-Virus and Endpoint Security before 6.0.5, Anti-Virus...","description":"Heap-based buffer overflow in Sophos Anti-Virus and Endpoint Security before 6.0.5, Anti-Virus for Linux before 5.0.10, and other platforms before 4.11, when archive scanning is enabled, allows remote attackers to trigger a denial of service (memory corruption) via a CHM file with an LZX decompression header that specifies a Window_size of 0.","status":"published","published":"2022-05-01T07:30:33Z","modified":"2023-01-31T05:02:35Z","cwes":["CWE-119"],"updated_at":"2026-11-02T14:48:17.45489Z"}],"nvd":[{"id":"CVE-2006-5646","description":"Heap-based buffer overflow in Sophos Anti-Virus and Endpoint Security before 6.0.5, Anti-Virus for Linux before 5.0.10, and other platforms before 4.11, when archive scanning is enabled, allows remote attackers to trigger a denial of service (memory corruption) via a CHM file with an LZX decompression header that specifies a Window_size of 0.","status":"published","published":"2006-11-01T15:07:00Z","modified":"2026-06-16T22:31:35.963Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:01:07.481037Z"}]}}