CVE-2025-14328 Affecting firefox-esr package, versions <140.6.0esr-1~deb13u1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

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  • Snyk IDSNYK-DEBIAN13-FIREFOXESR-14267919
  • published10 Dec 2025
  • disclosed9 Dec 2025

Introduced: 9 Dec 2025

NewCVE-2025-14328  (opens in a new tab)

How to fix?

Upgrade Debian:13 firefox-esr to version 140.6.0esr-1~deb13u1 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 Debian. See How to fix? for Debian:13 relevant fixed versions and status.

Privilege escalation in the Netmonitor component. This vulnerability affects Firefox < 146, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6.

CVSS Base Scores

version 3.1