CVE-2026-118014

CVSS 8.8 (high) · published 2026-10-27

Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 159 and Thunderbird 159.

Weakness: CWE-416

Source: NVD CVE-2026-118014

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=2082051
• https://www.mozilla.org/security/advisories/mfsa2026-118/
• https://www.mozilla.org/security/advisories/mfsa2026-121/

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