Use-after-free in the WebRTC: Audio/Video component. This vulnerability affects Firefox < 145 and Firefox ESR < 140.5.

Metrics

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 Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

Affected Vendors & Products

Vendors Products
Mozilla
  • Firefox
  • Firefox Esr

No data.

No data.

References
Link Providers
https://bugzilla.mozilla.org/show_bug.cgi?id=1995686 cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-13020 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-13020 cve-icon
https://www.mozilla.org/security/advisories/mfsa2025-87/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2025-88/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2025-88/#CVE-2025-13020 cve-icon
History

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
cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2025-11-12T14:59:04.664Z

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 : Awaiting Analysis

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

Modified: 2025-11-12T16:19:34.210

Link: CVE-2025-13020

cve-icon Redhat

Severity : Moderate

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

Links: CVE-2025-13020 - Bugzilla