{"id":"CVE-2026-117872","title":"Use-after-free in the JavaScript: Standard Library component","summary":"Use-after-free in the JavaScript: Standard Library component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.","severity":"none","vendor":"Mozilla","product":"Firefox","affected":["Firefox","Thunderbird"],"published":"2026-10-27","updated":"2026-10-27","sourceUpdated":"2026-10-27T18:28:08.404Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-117872","references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2068410"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-118/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-119/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-120/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-121/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-122/"}],"tags":["cve.org"],"ingestedAt":"2026-10-27T16:11:59.362Z","slug":"CVE-2026-117872","body":"## Overview\n\nUse-after-free in the JavaScript: Standard Library component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.\n\n## Affected\n\n- `Firefox`\n- `Thunderbird`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}