{"id":"CVE-2026-113869","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-113869","generatedAt":"2026-10-28T02:24:02.774Z","title":"This freed the message decoder while it was still in use, causing a use-after-free and a potentially exploitable crash.","description":"When Thunderbird asked for a security device password (for example a smartcard PIN or the Primary Password) while decrypting an S/MIME message, the message load could finish or be cancelled while the prompt was open. This freed the message decoder while it was still in use, causing a use-after-free and a potentially exploitable crash. This vulnerability was fixed in Thunderbird 158.0.1 and Thunderbird 153.6.","published":"2026-10-20T20:17:20.000Z","lastModified":"2026-10-27T19:17:10.000Z","status":"Awaiting Analysis","sourceIdentifier":"security@mozilla.org","cvss":{"version":"3.1","score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L"},"cwe":["CWE-416"],"affected":[],"epss":{"score":0.00279,"percentile":0.20127,"date":"2026-10-26","history":[{"date":"2026-10-21","score":0.00278,"percentile":0.19166}]},"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 (0.28%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-20T20:17:20.000Z","detail":{"score":"5.4","severity":"MEDIUM","publishedAt":"2026-10-20T20:17:19.860Z"},"summary":"New CVE, medium severity (CVSS 5.4)."}],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2075530","source":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-114/","source":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-122/","source":"security@mozilla.org"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-113869","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."}