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

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00057.

Exploitation none

Automatable yes

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Mozilla Firefox affected
Version Status Constraints
unspecified affected < 146
Mozilla Thunderbird affected
Version Status Constraints
unspecified affected < 146

Configuration 1 [-]

OR cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*

No data.

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Vendors Products
Mozilla Subscribe
Firefox Subscribe

Project Subscriptions

Vendors Products
Mozilla Subscribe
Firefox Subscribe
Thunderbird Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://bugzilla.mozilla.org/show_bug.cgi?id=1840666 cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-14326 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-14326 cve-icon
https://www.mozilla.org/security/advisories/mfsa2025-92/ cve-icon cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2025-95/ cve-icon cve-icon
History

Thu, 11 Dec 2025 21:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Wed, 10 Dec 2025 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla thunderbird
Weaknesses CWE-416
CPEs cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*
Vendors & Products Mozilla thunderbird
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

 cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Wed, 10 Dec 2025 18:00:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla
Mozilla firefox
Vendors & Products Mozilla
Mozilla firefox

Wed, 10 Dec 2025 14:45:00 +0000

Type Values Removed Values Added
Description Use-after-free in the Audio/Video: GMP component. This vulnerability affects Firefox < 146. Use-after-free in the Audio/Video: GMP component. This vulnerability affects Firefox < 146 and Thunderbird < 146.
References

Wed, 10 Dec 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

threat_severity

Moderate

Tue, 09 Dec 2025 13:45:00 +0000

Type Values Removed Values Added
Description Use-after-free in the Audio/Video: GMP component. This vulnerability affects Firefox < 146.
Title Use-after-free in the Audio/Video: GMP component
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2025-12-11T20:48:55.444Z

Reserved: 2025-12-09T13:37:59.479Z

Link: CVE-2025-14326

cve-icon Vulnrichment

Updated: 2025-12-11T20:47:36.576Z

cve-icon NVD

Status : Modified

Published: 2025-12-09T16:17:40.120

Modified: 2025-12-11T21:15:47.077

Link: CVE-2025-14326

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-12-09T13:38:00Z

Links: CVE-2025-14326 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-12-10T17:51:46Z

Weaknesses