CVE-2026-92032: mozilla firefox, mozilla thunderbird

CVSS 9.6 (critical) · published 2026-09-15

Sandbox escape due to invalid pointer in the Graphics component. This vulnerability was fixed in Firefox 156, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

Affected products (NVD): mozilla firefox, mozilla thunderbird

Fixed in (NVD): 140.16.0, 153.3.0, 156.0.0, 156.0

Weakness: CWE-119

Source: NVD CVE-2026-92032

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=2068437
• https://www.mozilla.org/security/advisories/mfsa2026-90/
• https://www.mozilla.org/security/advisories/mfsa2026-92/
• https://www.mozilla.org/security/advisories/mfsa2026-93/
• https://www.mozilla.org/security/advisories/mfsa2026-94/
• https://www.mozilla.org/security/advisories/mfsa2026-95/
• https://www.mozilla.org/security/advisories/mfsa2026-96/

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