{"id":"CVE-2026-100819","published":"2026-09-29T13:17:47.193","lastModified":"2026-09-30T04:18:19.200","description":"Sandbox escape due to incorrect boundary conditions in the XPCOM component. This vulnerability was fixed in Firefox ESR 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.","cvssScore":9.6,"cvssSeverity":"CRITICAL","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","cwes":["CWE-119"],"vendors":[],"products":[],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2071069","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-100/","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-97/","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-98/","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-99/","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"This flaw allows an attacker to escape the sandbox due to incorrect boundary conditions in the XPCOM component, which could lead to arbitrary code execution.","exploitability":"Exploitation is moderately difficult and requires specific conditions, such as the presence of a vulnerable XPCOM component.","blast_radius":"If exploited, this vulnerability could result in full system compromise, allowing an attacker to execute arbitrary code with the privileges of the affected application.","remediation":"Upgrade to Firefox ESR 153.4, Firefox 157, Firefox ESR 115.42, or Firefox ESR 140.17 or later.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["rce","sandbox-escape","firefox"],"model":"qwen2.5:7b-instruct","analyzedAt":"2026-09-30T08:51:31.190Z"}}