{"id":"CVE-2012-1458","url":"https://www.cyber-defence.io/tools/cve/CVE-2012-1458","generatedAt":"2026-10-27T19:53:18.663Z","title":"The Microsoft CHM file parser in ClamAV 0.96.4 and Sophos Anti-Virus 4.61.0 allows remote attackers to bypass malware detection via a crafted reset interval in the LZXC header of a CHM file.","description":"The Microsoft CHM file parser in ClamAV 0.96.4 and Sophos Anti-Virus 4.61.0 allows remote attackers to bypass malware detection via a crafted reset interval in the LZXC header of a CHM file.  NOTE: this may later be SPLIT into multiple CVEs if additional information is published showing that the error occurred independently in different CHM parser implementations.","published":"2012-03-21T10:11:49.000Z","lastModified":"2026-06-16T23:39:34.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":4.3,"severity":"MEDIUM","vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N"},"cwe":["CWE-264"],"affected":["clamav/clamav","sophos/sophos anti-virus"],"epss":{"score":0.73671,"percentile":0.99469,"date":"2026-10-26","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 73.7%, higher than 99% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00002.html","source":"cve@mitre.org"},{"url":"http://osvdb.org/80473","source":"cve@mitre.org"},{"url":"http://osvdb.org/80474","source":"cve@mitre.org"},{"url":"http://www.ieee-security.org/TC/SP2012/program.html","source":"cve@mitre.org"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2012:094","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/archive/1/522005","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/52611","source":"cve@mitre.org"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/74301","source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00002.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://osvdb.org/80473","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://osvdb.org/80474","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ieee-security.org/TC/SP2012/program.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2012:094","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/archive/1/522005","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/52611","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/74301","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2012-1458","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."}