{"id":"CVE-2026-100764","title":"Privilege escalation due to incorrect boundary conditions in the Graphics: WebGPU component","summary":"Privilege escalation due to incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cwe":["CWE-119"],"vendor":"mozilla","product":"firefox","affected":["firefox < 157.0.0","thunderbird < 157.0"],"patched":["firefox 157.0.0","thunderbird 157.0"],"published":"2026-09-29","updated":"2026-10-13","sourceUpdated":"2026-10-13T18:30:47.470","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-100764","references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2061290","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-101/","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-97/","label":"security@mozilla.org"}],"tags":["nvd","cve.org"],"epss":0.00231,"epssPercentile":0.13934,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-09-29T13:14:29.276718Z"},"ingestedAt":"2026-09-29T13:34:31.655Z","slug":"CVE-2026-100764","body":"## Overview\n\nPrivilege escalation due to incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.\n\n## Affected\n\n- `firefox < 157.0.0`\n- `thunderbird < 157.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `firefox 157.0.0`\n- `thunderbird 157.0`","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}