Vulnerability DatabaseCVE-2025-14330
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CVE-2025-14330
December 09, 2025
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability affects Firefox < 146 and Firefox ESR < 140.6.
Additional Notes
The description of this vulnerability differs from MITRE.
Related Resources (5)
https://www.mozilla.org/security/advisories/mfsa2025-95/
https://www.mozilla.org/security/advisories/mfsa2025-96/
https://bugzilla.mozilla.org/show_bug.cgi?id=1997503
https://www.mozilla.org/security/advisories/mfsa2025-92/
https://www.mozilla.org/security/advisories/mfsa2025-94/
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CVSS v4
Base Score:
9.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
9.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Access of Resource Using Incompatible Type ('Type Confusion')
CWE-843
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-119
Function Call With Incorrect Argument Type
CWE-686
EPSS
Base Score:
0.07