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

CVE-2026-117865

CVE-2026-117865

Description

Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 159 and Firefox ESR 153.6.

Affected products

2

Mozilla Corporation/Firefox Esrllm-fuzzy
Range: >=153.6
Mozilla Corporation/Firefoxllm-fuzzy
Range: >=159, >=153.6

Patches

Vulnerability mechanics

References

3

News mentions

0

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CVE-2026-117865 · VYPR