{"id":"CVE-2010-4764","url":"https://www.cyber-defence.io/tools/cve/CVE-2010-4764","generatedAt":"2026-10-27T21:41:57.546Z","title":"Open Ticket Request System (OTRS) before 2.4.10, and 3.x before 3.0.3, does not present warnings about incoming encrypted e-mail messages that were based on revoked PGP or GPG keys, which makes it easier for remote attackers to spoof e-mail…","description":"Open Ticket Request System (OTRS) before 2.4.10, and 3.x before 3.0.3, does not present warnings about incoming encrypted e-mail messages that were based on revoked PGP or GPG keys, which makes it easier for remote attackers to spoof e-mail communication by leveraging a key that has a revocation signature.","published":"2011-03-18T16:55:02.000Z","lastModified":"2026-06-16T23:25:30.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":5,"severity":"MEDIUM","vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N"},"cwe":["CWE-255"],"affected":["otrs/otrs"],"epss":{"score":0.01466,"percentile":0.73508,"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":"low","text":"Lower severity and a low EPSS score (1.47%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://bugs.otrs.org/show_bug.cgi?id=6131","source":"cve@mitre.org"},{"url":"http://source.otrs.org/viewvc.cgi/otrs/CHANGES?revision=1.1807","source":"cve@mitre.org"},{"url":"http://bugs.otrs.org/show_bug.cgi?id=6131","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://source.otrs.org/viewvc.cgi/otrs/CHANGES?revision=1.1807","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2010-4764","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."}