BaseFortify

Publication date: 2025-12-09

Last updated on: 2026-04-13

Assigner: Mozilla Corporation

Description

Use-after-free in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 146 and Thunderbird 146.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2025-12-09

Last Modified

2026-04-13

Generated

2026-07-06

AI Q&A

2025-12-09

EPSS Evaluated

2026-07-04

NVD

CVE-2025-14326

Affected Vendors & Products

Vendor	Product	Version / Range
mozilla	firefox	to 146.0 (exc)
mozilla	thunderbird	to 146.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-416	The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Attack-Flow Graph

Executive Summary

This vulnerability is a use-after-free issue in the Audio/Video GMP component of Firefox versions prior to 146. A use-after-free occurs when a program continues to use memory after it has been freed, which can lead to crashes or potentially allow an attacker to execute arbitrary code.

Impact Analysis

This vulnerability can impact you by potentially allowing an attacker to execute arbitrary code or cause a crash in Firefox if you are using a version earlier than 146. This could lead to unauthorized actions or instability in your browser.

Mitigation Strategies

Update Firefox to version 146 or later, as this vulnerability affects Firefox versions prior to 146 and is fixed in version 146. [1]

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