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CVE-2025-13020

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Date: November 11, 2025

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

Severity Score

Related Resources (7)

https://www.mozilla.org/security/advisories/mfsa2025-91/
https://www.mozilla.org/security/advisories/mfsa2025-90/
https://bugzilla.mozilla.org/show_bug.cgi?id=1995686
https://www.mozilla.org/security/advisories/mfsa2025-88/
https://nvd.nist.gov/vuln/detail/CVE-2025-13020
https://www.mozilla.org/security/advisories/mfsa2025-87/
https://www.mend.io/vulnerability-database/CVE-2025-13020

Severity Score

Weakness Type (CWE)

Use After Free

CWE-416

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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