{"id":"CVE-2017-12374","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-12374","generatedAt":"2026-10-28T20:11:30.143Z","title":"The ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.","description":"The ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a lack of input validation checking mechanisms during certain mail parsing operations (mbox.c operations on bounce messages). If successfully exploited, the ClamAV software could allow a variable pointing to the mail body which could cause a used after being free (use-after-free) instance which may lead to a disruption of services on an affected device to include a denial of service condition.","published":"2018-01-26T20:29:00.000Z","lastModified":"2026-06-17T01:03:14.000Z","status":"Modified","sourceIdentifier":"psirt@cisco.com","cvss":{"version":"3.0","score":7.5,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-416"],"affected":["debian/debian linux","clamav/clamav"],"epss":{"score":0.04982,"percentile":0.92165,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (4.98%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://blog.clamav.net/2018/01/clamav-0993-has-been-released.html","tags":["Release Notes","Vendor Advisory"],"source":"psirt@cisco.com"},{"url":"https://bugzilla.clamav.net/show_bug.cgi?id=11939","tags":["Exploit","Issue Tracking","Patch","Vendor Advisory"],"source":"psirt@cisco.com"},{"url":"https://lists.debian.org/debian-lts-announce/2018/01/msg00035.html","tags":["Mailing List","Third Party Advisory"],"source":"psirt@cisco.com"},{"url":"https://usn.ubuntu.com/3550-1/","source":"psirt@cisco.com"},{"url":"https://usn.ubuntu.com/3550-2/","source":"psirt@cisco.com"},{"url":"http://blog.clamav.net/2018/01/clamav-0993-has-been-released.html","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.clamav.net/show_bug.cgi?id=11939","tags":["Exploit","Issue Tracking","Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2018/01/msg00035.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3550-1/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3550-2/","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-12374","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."}