{"id":"CVE-2012-6706","url":"https://www.cyber-defence.io/tools/cve/CVE-2012-6706","generatedAt":"2026-11-05T04:41:19.680Z","title":"A VMSF_DELTA memory corruption was discovered in unrar before 5.5.5, as used in Sophos Anti-Virus Threat Detection Engine before 3.37.2 and other products, that can lead to arbitrary code execution.","description":"A VMSF_DELTA memory corruption was discovered in unrar before 5.5.5, as used in Sophos Anti-Virus Threat Detection Engine before 3.37.2 and other products, that can lead to arbitrary code execution. An integer overflow can be caused in DataSize+CurChannel. The result is a negative value of the \"DestPos\" variable, which allows the attacker to write out of bounds when setting Mem[DestPos].","published":"2017-06-22T13:29:00.000Z","lastModified":"2026-06-16T23:48:39.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-190"],"affected":["sophos/threat detection engine","rarlab/unrar"],"epss":{"score":0.10108,"percentile":0.95657,"date":"2026-11-04","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 10.1%, higher than 96% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://securitytracker.com/id?1027725","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://telussecuritylabs.com/threats/show/TSL20121207-01","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://bugs.chromium.org/p/project-zero/issues/detail?id=1286","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://community.sophos.com/kb/en-us/118424#six","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://kc.mcafee.com/corporate/index?page=content&id=SB10205","source":"cve@mitre.org"},{"url":"https://lock.cmpxchg8b.com/sophailv2.pdf","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://nakedsecurity.sophos.com/2012/11/05/tavis-ormandy-sophos/","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://security.gentoo.org/glsa/201708-05","source":"cve@mitre.org"},{"url":"https://security.gentoo.org/glsa/201709-24","source":"cve@mitre.org"},{"url":"https://security.gentoo.org/glsa/201804-16","source":"cve@mitre.org"},{"url":"http://securitytracker.com/id?1027725","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://telussecuritylabs.com/threats/show/TSL20121207-01","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugs.chromium.org/p/project-zero/issues/detail?id=1286","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://community.sophos.com/kb/en-us/118424#six","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://kc.mcafee.com/corporate/index?page=content&id=SB10205","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lock.cmpxchg8b.com/sophailv2.pdf","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://nakedsecurity.sophos.com/2012/11/05/tavis-ormandy-sophos/","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201708-05","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201709-24","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201804-16","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2012-6706","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}