CVE-2025-11153

JIT miscompilation in the JavaScript Engine: JIT component

State: Published
Severity: 7.5 High
Published: Sep 30, 2025
Updated: Aug 4, 2026
Reserved: Sep 29, 2025

Description

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 143.0.3.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N	CISA-ADP

Weaknesses

CWE-94 Improper Control of Generation of Code ('Code Injection')

Affected Products

Product	Versions
FirefoxMozilla	143.0.3 and laterNot affected

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1987481
https://www.mozilla.org/security/advisories/mfsa2025-80/

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.