What’s Vulnerable › Vulnerabilities

CVE-2025-13024: JIT miscompilation in the JavaScript Engine: JIT component

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-11-11 · updated 2026-10-18
• Weakness: CWE-733

Description

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 145 and Thunderbird 145.

Affected products

• Mozilla Firefox: before 145.0 — fixed in 145.0

How to fix

Upgrade to a fixed version: Mozilla Firefox 145.0. Check the vendor advisory for mitigations.

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=1992902
• https://www.mozilla.org/security/advisories/mfsa2025-87/
• https://www.mozilla.org/security/advisories/mfsa2025-90/

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