{"id":"CVE-2026-84131","state":"PUBLISHED","title":"Privilege escalation due to invalid pointer in the Graphics component","description":"Privilege escalation due to invalid pointer in the Graphics component. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.","publishedAt":"2026-09-01T12:18:42.768Z","updatedAt":"2026-09-02T03:55:25.128Z","severity":{"score":8.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"mozilla","products":["Mozilla Firefox","Mozilla Thunderbird"],"affected":[{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"115.40","status":"unaffected","lessThanOrEqual":"115.*","versionType":"rpm"},{"version":"140.15","status":"unaffected","lessThanOrEqual":"140.*","versionType":"rpm"},{"version":"153.2","status":"unaffected","lessThanOrEqual":"153.*","versionType":"rpm"},{"version":"155","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]},{"vendor":"Mozilla","product":"Thunderbird","versions":[{"version":"140.15","status":"unaffected","lessThanOrEqual":"140.*","versionType":"rpm"},{"version":"153.2","status":"unaffected","lessThanOrEqual":"153.*","versionType":"rpm"},{"version":"155","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]}],"references":["https://bugzilla.mozilla.org/show_bug.cgi?id=2060008","https://www.mozilla.org/security/advisories/mfsa2026-82/","https://www.mozilla.org/security/advisories/mfsa2026-83/","https://www.mozilla.org/security/advisories/mfsa2026-84/","https://www.mozilla.org/security/advisories/mfsa2026-85/","https://www.mozilla.org/security/advisories/mfsa2026-86/","https://www.mozilla.org/security/advisories/mfsa2026-87/","https://www.mozilla.org/security/advisories/mfsa2026-88/"],"weaknesses":["CWE-763"],"ingestedAt":"2026-10-29T20:13:15.269Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/84xxx/CVE-2026-84131.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-84131","state":"PUBLISHED","datePublished":"2026-09-01T12:18:42.768Z","dateUpdated":"2026-09-02T03:55:25.128Z","assignerShortName":"mozilla","assignerOrgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","dateReserved":"2026-09-01T07:25:34.092Z"},"containers":{"cna":{"title":"Privilege escalation due to invalid pointer in the Graphics component","descriptions":[{"lang":"en","value":"Privilege escalation due to invalid pointer in the Graphics component. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2."}],"affected":[{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"115.40","status":"unaffected","lessThanOrEqual":"115.*","versionType":"rpm"},{"version":"140.15","status":"unaffected","lessThanOrEqual":"140.*","versionType":"rpm"},{"version":"153.2","status":"unaffected","lessThanOrEqual":"153.*","versionType":"rpm"},{"version":"155","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]},{"vendor":"Mozilla","product":"Thunderbird","versions":[{"version":"140.15","status":"unaffected","lessThanOrEqual":"140.*","versionType":"rpm"},{"version":"153.2","status":"unaffected","lessThanOrEqual":"153.*","versionType":"rpm"},{"version":"155","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]}],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2060008"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-82/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-83/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-84/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-85/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-86/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-87/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-88/"}],"providerMetadata":{"shortName":"mozilla","orgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","dateUpdated":"2026-09-01T21:44:08.906Z"},"credits":[{"lang":"en","value":"navapon"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":8.8,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"REQUIRED","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-09-01T00:00:00+00:00","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-84131"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-763","type":"CWE","lang":"en","description":"CWE-763 Release of Invalid Pointer or Reference"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-02T03:55:25.128Z"}}]}}}