CVE-2025-11153 — HIGH (7.5)

Q: What is CVE-2025-11153?

CVE-2025-11153 is a vulnerability with a CVSS score of 7.5 (HIGH). JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 143.0.3.

Q: How severe is CVE-2025-11153?

CVE-2025-11153 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2025-11153?

Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox.

Vulnerability Description

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

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

NONE

Affected Products

Vendor	Product	Versions
Mozilla	Firefox	< 143.0.3

Related Weaknesses (CWE)

CWE-94

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1987481Issue TrackingPermissions Required
https://www.mozilla.org/security/advisories/mfsa2025-80/Vendor Advisory

FAQ

What is CVE-2025-11153?

CVE-2025-11153 is a vulnerability with a CVSS score of 7.5 (HIGH). JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 143.0.3.

How severe is CVE-2025-11153?

CVE-2025-11153 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-11153?

Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox.