High severity8.8NVD Advisory· Published Sep 15, 2026· Updated Sep 15, 2026

CVE-2026-92043

Description

Privilege escalation due to incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 156 and Firefox ESR 153.3.

Affected products

Mozilla Corporation/Firefox Esrllm-fuzzy
Range: before 153.3
Mozilla Corporation/Firefoxllm-fuzzy
Range: before 156

Patches

Vulnerability mechanics

References

bugzilla.mozilla.org/show_bug.cginvd
www.mozilla.org/security/advisories/mfsa2026-90/nvd
www.mozilla.org/security/advisories/mfsa2026-93/nvd

News mentions

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