CVE-2025-13014 Affecting firefox-esr package, versions <140.5-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.29% (21st percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-FIREFOXESR-17764657
  • published1 Jul 2026
  • disclosed11 Nov 2025

Introduced: 11 Nov 2025

CVE-2025-13014  (opens in a new tab)

How to fix?

Upgrade Chainguard firefox-esr to version 140.5-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox-esr package and not the firefox-esr package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

Use-after-free in the Audio/Video component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Firefox ESR 115.30, Thunderbird 145, and Thunderbird 140.5.

CVSS Base Scores

version 3.1