Unrated severityNVD Advisory· Published Oct 27, 2026· Updated Oct 27, 2026

CVE-2026-117862

Description

Privilege escalation due to incorrect boundary conditions in the Networking component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, and Firefox ESR 153.6.

Affected products

Mozilla Corporation/Firefox Esrllm-fuzzy
Range: <115.44, <153.6
Mozilla Corporation/Firefoxllm-fuzzy
Range: <159

Patches

Vulnerability mechanics

References

bugzilla.mozilla.org/show_bug.cginvd
www.mozilla.org/security/advisories/mfsa2026-118/nvd
www.mozilla.org/security/advisories/mfsa2026-119/nvd
www.mozilla.org/security/advisories/mfsa2026-120/nvd

News mentions

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