CVE-2025-14324
BaseFortify
Publication date: 2025-12-09
Last updated on: 2026-04-13
Assigner: Mozilla Corporation
Description
Description
CVSS Scores
EPSS Scores
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| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| mozilla | firefox | to 115.31.0 (exc) |
| mozilla | firefox | to 146.0 (exc) |
| mozilla | firefox | From 116.0 (inc) to 140.6.0 (exc) |
| mozilla | thunderbird | to 140.6.0 (exc) |
| mozilla | thunderbird | to 146.0 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-94 | The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. |
| CWE-NVD-CWE-noinfo |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a JIT (Just-In-Time) miscompilation issue in the JavaScript Engine's JIT component affecting certain versions of Firefox and Firefox ESR. It means that the JIT compiler may incorrectly compile JavaScript code, potentially leading to unexpected behavior or security issues.
How can this vulnerability impact me? :
The impact of this vulnerability could include incorrect execution of JavaScript code, which might be exploited to cause crashes, data corruption, or potentially allow an attacker to execute arbitrary code or bypass security mechanisms in affected Firefox versions.
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, update Firefox to version 146 or later, or Firefox ESR to version 115.31 or later for ESR 115, and to version 140.6 or later for ESR 140. These updates include fixes for the JIT miscompilation vulnerability in the JavaScript Engine. Keeping your browser up to date ensures that the security patches addressing this issue are applied. [3]