CVE-2025-14330 Affecting firefox-esr package, versions <140.6.0esr-1


Severity

Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
0.51% (42nd percentile)

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  • Snyk IDSNYK-DEBIAN14-FIREFOXESR-14267898
  • published10 Dec 2025
  • disclosed9 Dec 2025

Introduced: 9 Dec 2025

CVE-2025-14330  (opens in a new tab)

How to fix?

Upgrade Debian:14 firefox-esr to version 140.6.0esr-1 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:14 relevant fixed versions and status.

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.

CVSS Base Scores

version 3.1