CVE-2025-14326
Use-after-free in the Audio/Video: GMP component
9.8 Critical
Use-after-free in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 146 and Thunderbird 146.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
0.46%Up 0.4 points since Dec 10, 2025
What each source reports
NVD Score used
Use-after-free in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 146 and Thunderbird 146.
- Record
CVE-2025-14326- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-416
- Updated
- 2026-11-02
CVE List
Use-after-free in the Audio/Video: GMP component
Use-after-free in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 146 and Thunderbird 146.
- Record
CVE-2025-14326- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-416
- Updated
- 2026-11-02
EUVDEUVD-2025-202160
Use-after-free in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 146 and Thunderbird 146.
- Record
EUVD-2025-202160- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-2628-4jvp-96vc
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.
- Record
GHSA-2628-4jvp-96vc- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-416
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2025-14326
Use-after-free in the Audio/Video: GMP component. This vulnerability affects Firefox < 146 and Thunderbird < 146.
- Record
UBUNTU-CVE-2025-14326- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVopenSUSE-SU-2025:15813-1 No score
MozillaFirefox-146.0-1.1 on GA media
These are all security issues fixed in the MozillaFirefox-146.0-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2025:15813-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2026:11373-1 No score
firefox-esr-153.0-1.1 on GA media
These are all security issues fixed in the firefox-esr-153.0-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2026:11373-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
MozillaFirefoxopenSUSE:Tumbleweed From an advisory covering 13 CVEs |
before 146.0-1.1 | 146.0-1.1 |
firefox-esropenSUSE:Tumbleweed From an advisory covering 228 CVEs |
before 153.0-1.1 | 153.0-1.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| affected | ||
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-14326 is a critical vulnerability (CVSS 9.8) in Mozilla Firefox, published December 9, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.46%, the 40th percentile. No source names a fixed version.
References
bugzilla.mozilla.org/show_bug.cgi?id=1840666
mozilla.org/security/advisories/mfsa2025-92
nvd.nist.gov/vuln/detail/CVE-2025-14326
github.com/advisories/GHSA-2628-4jvp-96vc
ubuntu.com/security/CVE-2025-14326
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cve.org/CVERecord?id=CVE-2025-14326
suse.com/security/cve/CVE-2025-14321
This page doesn't list everything
Left out here: 47 references. The JSON record has them.