{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-12324", "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "state": "PUBLISHED", "assignerShortName": "mozilla", "dateReserved": "2026-06-15T15:08:21.057Z", "datePublished": "2026-06-16T11:52:57.719Z", "dateUpdated": "2026-06-16T16:11:30.685Z"}, "containers": {"cna": {"affected": [{"product": "Firefox", "vendor": "Mozilla", "versions": [{"status": "unaffected", "version": "140.12", "lessThanOrEqual": "140.*", "versionType": "rpm"}, {"status": "unaffected", "version": "152", "lessThanOrEqual": "*", "versionType": "rpm"}]}, {"product": "Thunderbird", "vendor": "Mozilla", "versions": [{"status": "unaffected", "version": "140.12", "lessThanOrEqual": "140.*", "versionType": "rpm"}, {"status": "unaffected", "version": "152", "lessThanOrEqual": "*", "versionType": "rpm"}]}], "descriptions": [{"lang": "en", "value": "Incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12."}]}], "title": "Incorrect boundary conditions in the Graphics: CanvasWebGL component", "references": [{"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2038444"}, {"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/mfsa2026-60/"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2026-61/"}], "credits": [{"lang": "en", "value": "Mihalis Haatainen"}], "providerMetadata": {"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "shortName": "mozilla", "dateUpdated": "2026-06-16T16:08:44.115Z"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-703", "lang": "en", "description": "CWE-703 Improper Check or Handling of Exceptional Conditions"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.3, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-06-16T16:11:28.026841Z", "id": "CVE-2026-12324", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-16T16:11:30.685Z"}}]}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 152 and Firefox ESR 140.12."}], "id": "CVE-2026-12324", "lastModified": "2026-06-16T14:51:31.350", "metrics": {}, "published": "2026-06-16T13:16:33.153", "references": [{"source": "security@mozilla.org", "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2038444"}, {"source": "security@mozilla.org", "url": "https://www.mozilla.org/security/advisories/mfsa2026-57/"}, {"source": "security@mozilla.org", "url": "https://www.mozilla.org/security/advisories/mfsa2026-58/"}], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Undergoing Analysis"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[140.12,141.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[152,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Firefox", "source": "cna", "vendor": "Mozilla"}, "product": "firefox", "vendor": "mozilla"}], "created": "2026-06-16T15:30:18.025843+00:00", "updated": "2026-06-16T15:30:18.025881+00:00", "vendors": ["mozilla", "mozilla$PRODUCT$firefox"]}