CVE-2025-13020 Affecting thunderbird package, versions <0:140.5.0-2.el10_1


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.05% (17th percentile)

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  • Snyk IDSNYK-ALMALINUX10-THUNDERBIRD-14121658
  • published26 Nov 2025
  • disclosed20 Nov 2025

Introduced: 20 Nov 2025

NewCVE-2025-13020  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:10 thunderbird to version 0:140.5.0-2.el10_1 or higher.
This issue was patched in ALSA-2025:21843.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by AlmaLinux. See How to fix? for AlmaLinux:10 relevant fixed versions and status.

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

CVSS Base Scores

version 3.1