{"api_version":"1","generated_at":"2026-06-16T23:24:14+00:00","cve":"CVE-2026-12289","urls":{"html":"https://cve.report/CVE-2026-12289","api":"https://cve.report/api/cve/CVE-2026-12289.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-12289","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-12289"},"summary":{"title":"Privilege escalation in the Graphics: WebRender component","description":"Privilege escalation in the Graphics: WebRender component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.","state":"PUBLISHED","assigner":"mozilla","published_at":"2026-06-16 13:16:29","updated_at":"2026-06-16 20:34:19"},"problem_types":["CWE-269","CWE-269 CWE-269 Improper Privilege Management"],"metrics":[{"version":"3.1","source":"ADP","type":"DECLARED","score":"8.8","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"}},{"version":"3.1","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","score":"8.8","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}}],"references":[{"url":"https://www.mozilla.org/security/advisories/mfsa2026-58/","name":"https://www.mozilla.org/security/advisories/mfsa2026-58/","refsource":"security@mozilla.org","tags":["Vendor Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-59/","name":"https://www.mozilla.org/security/advisories/mfsa2026-59/","refsource":"security@mozilla.org","tags":["Vendor Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-57/","name":"https://www.mozilla.org/security/advisories/mfsa2026-57/","refsource":"security@mozilla.org","tags":["Vendor Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2023443","name":"https://bugzilla.mozilla.org/show_bug.cgi?id=2023443","refsource":"security@mozilla.org","tags":["Permissions Required"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-61/","name":"https://www.mozilla.org/security/advisories/mfsa2026-61/","refsource":"security@mozilla.org","tags":["Vendor Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-60/","name":"https://www.mozilla.org/security/advisories/mfsa2026-60/","refsource":"security@mozilla.org","tags":["Vendor Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-12289","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12289","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Mozilla","product":"Firefox","version":"unaffected 115.37 115.* rpm","platforms":[]},{"source":"CNA","vendor":"Mozilla","product":"Firefox","version":"unaffected 140.12 140.* rpm","platforms":[]},{"source":"CNA","vendor":"Mozilla","product":"Firefox","version":"unaffected 152 * rpm","platforms":[]},{"source":"CNA","vendor":"Mozilla","product":"Thunderbird","version":"unaffected 140.12 140.* rpm","platforms":[]},{"source":"CNA","vendor":"Mozilla","product":"Thunderbird","version":"unaffected 152 * rpm","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"choeseyeong","lang":"en"}],"nvd_cpes":[{"cve_year":"2026","cve_id":"12289","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"firefox","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"-","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2026","cve_id":"12289","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"firefox","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"esr","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"}},{"other":{"content":{"id":"CVE-2026-12289","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","timestamp":"2026-06-16T14:27:47.456732Z","version":"2.0.3"},"type":"ssvc"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-269","description":"CWE-269 Improper Privilege Management","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-06-16T14:28:29.084Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"product":"Firefox","vendor":"Mozilla","versions":[{"lessThanOrEqual":"115.*","status":"unaffected","version":"115.37","versionType":"rpm"},{"lessThanOrEqual":"140.*","status":"unaffected","version":"140.12","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"152","versionType":"rpm"}]},{"product":"Thunderbird","vendor":"Mozilla","versions":[{"lessThanOrEqual":"140.*","status":"unaffected","version":"140.12","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"152","versionType":"rpm"}]}],"credits":[{"lang":"en","value":"choeseyeong"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Privilege escalation in the Graphics: WebRender component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12."}],"value":"Privilege escalation in the Graphics: WebRender component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12."}],"providerMetadata":{"dateUpdated":"2026-06-16T16:08:23.846Z","orgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","shortName":"mozilla"},"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2023443"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-57/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-58/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-59/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-60/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-61/"}],"title":"Privilege escalation in the Graphics: WebRender component"}},"cveMetadata":{"assignerOrgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","assignerShortName":"mozilla","cveId":"CVE-2026-12289","datePublished":"2026-06-16T11:52:22.944Z","dateReserved":"2026-06-15T15:08:05.525Z","dateUpdated":"2026-06-16T16:08:23.846Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-16 13:16:29","lastModifiedDate":"2026-06-16 20:34:19","problem_types":["CWE-269","CWE-269 CWE-269 Improper Privilege Management"],"metrics":{"cvssMetricV31":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.9}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*","versionEndExcluding":"115.37.0","matchCriteriaId":"60E86F4A-420C-4F69-8081-79D1F64411C7"},{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*","versionEndExcluding":"152.0","matchCriteriaId":"93E49538-C02B-45EB-8090-943AB1BC919A"},{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*","versionStartIncluding":"140.0","versionEndExcluding":"140.12.0","matchCriteriaId":"E539846C-B1B9-41D9-A589-F46AEF0BFCD6"},{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*","versionEndExcluding":"152.0.0","matchCriteriaId":"77D88ED0-AABD-4312-98B8-3D4B70226577"},{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*","versionStartIncluding":"140.0","versionEndExcluding":"140.12.0","matchCriteriaId":"8CDF58C2-CD62-4DAB-9B1C-B48CE10FB31C"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"12289","Ordinal":"1","Title":"Privilege escalation in the Graphics: WebRender component","CVE":"CVE-2026-12289","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"12289","Ordinal":"1","NoteData":"Privilege escalation in the Graphics: WebRender component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.","Type":"Description","Title":"Privilege escalation in the Graphics: WebRender component"}]}}}