CVE-2025-14326: Vulnerability in Mozilla Firefox
Use-after-free in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 146 and Thunderbird 146.
AI Analysis
Technical Summary
CVE-2025-14326 is a use-after-free vulnerability (CWE-416) affecting the GMP (Gecko Media Plugin) component responsible for audio and video processing in Mozilla Firefox and Thunderbird. This flaw allows potential memory corruption that could be exploited to execute arbitrary code. The vulnerability was resolved in Firefox 146 and Thunderbird 146 releases. The CVSS v3.1 base score of 9.8 reflects network attack vector, no privileges required, no user interaction, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation of this use-after-free vulnerability could lead to arbitrary code execution with the privileges of the affected application, compromising system confidentiality, integrity, and availability. The critical CVSS score of 9.8 underscores the severity of the impact. However, no active exploitation in the wild has been reported to date.
Mitigation Recommendations
Mozilla has issued an official fix for this vulnerability in Firefox 146 and Thunderbird 146. Users and administrators should update to these versions or later to remediate the issue. Since this is not a cloud service, manual patching is required. Patch status is confirmed by the Mozilla advisories linked in the vendor advisory content.
CVE-2025-14326: Vulnerability in Mozilla Firefox
Description
Use-after-free in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 146 and Thunderbird 146.
CVSS v3.1
Score 9.8critical
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-14326 is a use-after-free vulnerability (CWE-416) affecting the GMP (Gecko Media Plugin) component responsible for audio and video processing in Mozilla Firefox and Thunderbird. This flaw allows potential memory corruption that could be exploited to execute arbitrary code. The vulnerability was resolved in Firefox 146 and Thunderbird 146 releases. The CVSS v3.1 base score of 9.8 reflects network attack vector, no privileges required, no user interaction, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation of this use-after-free vulnerability could lead to arbitrary code execution with the privileges of the affected application, compromising system confidentiality, integrity, and availability. The critical CVSS score of 9.8 underscores the severity of the impact. However, no active exploitation in the wild has been reported to date.
Mitigation Recommendations
Mozilla has issued an official fix for this vulnerability in Firefox 146 and Thunderbird 146. Users and administrators should update to these versions or later to remediate the issue. Since this is not a cloud service, manual patching is required. Patch status is confirmed by the Mozilla advisories linked in the vendor advisory content.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2025-12-09T13:37:59.479Z
- State
- PUBLISHED
Threat ID: 69382833abbdc4595cd484a4
Added to database: 12/09/2025, 13:46:27 UTC
Last enriched: 04/14/2026, 11:39:52 UTC
Last updated: 09/10/2026, 19:36:49 UTC
Views: 212
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