Use-after-free in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Thunderbird 145, and Thunderbird 140.5.

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4370-1 firefox-esr security update
Debian DLA Debian DLA DLA-4372-1 thunderbird security update
Debian DSA Debian DSA DSA-6054-1 firefox-esr security update
Debian DSA Debian DSA DSA-6059-1 thunderbird security update
Ubuntu USN Ubuntu USN USN-7991-1 Thunderbird vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 13 Apr 2026 15:00:00 +0000

Type Values Removed Values Added
Description Use-after-free in the WebRTC: Audio/Video component. This vulnerability affects Firefox < 145, Firefox ESR < 140.5, Thunderbird < 145, and Thunderbird < 140.5. Use-after-free in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Thunderbird 145, and Thunderbird 140.5.

Wed, 19 Nov 2025 19:30:00 +0000

Type Values Removed Values Added
Description Use-after-free in the WebRTC: Audio/Video component. This vulnerability affects Firefox < 145 and Firefox ESR < 140.5. Use-after-free in the WebRTC: Audio/Video component. This vulnerability affects Firefox < 145, Firefox ESR < 140.5, Thunderbird < 145, and Thunderbird < 140.5.
References

Mon, 17 Nov 2025 12:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*

Wed, 12 Nov 2025 15:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-416
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'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}


Wed, 12 Nov 2025 13:00:00 +0000

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

Wed, 12 Nov 2025 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-825
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, 11 Nov 2025 16:00:00 +0000

Type Values Removed Values Added
Description Use-after-free in the WebRTC: Audio/Video component. This vulnerability affects Firefox < 145 and Firefox ESR < 140.5.
Title Use-after-free in the WebRTC: Audio/Video component
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-04-13T14:26:35.933Z

Reserved: 2025-11-11T15:12:22.873Z

Link: CVE-2025-13020

cve-icon Vulnrichment

Updated: 2025-11-12T14:58:54.608Z

cve-icon NVD

Status : Modified

Published: 2025-11-11T16:15:39.097

Modified: 2026-04-13T15:16:43.353

Link: CVE-2025-13020

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-11-11T15:47:17Z

Links: CVE-2025-13020 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-11-12T12:42:24Z

Weaknesses