CVE-2026-124939

Description

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 160 and Firefox ESR 153.7.

Affected Platforms

Weakness Type

Unknown

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=2076663
• https://www.mozilla.org/security/advisories/mfsa2026-125/
• https://www.mozilla.org/security/advisories/mfsa2026-127/