CVE-2026-100797

Description

Privilege escalation due to use-after-free in the Graphics: WebRender component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

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Produits concernés

• Mozilla Firefox
• Mozilla Thunderbird

Scores CVSS

Faiblesses (CWE)

• CWE-416

Références

• https://bugzilla.mozilla.org/show_bug.cgi?id=2050542 Permissions Required
• https://www.mozilla.org/security/advisories/mfsa2026-100/ Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2026-101/ Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2026-102/ Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2026-103/ Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2026-97/ Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2026-98/ Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2026-99/ Vendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories