CVE-2025-14330 Affecting firefox package, versions <140.6-r0


Severity

Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
0.5% (40th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-FIREFOX-17764241
  • published1 Jul 2026
  • disclosed9 Dec 2025

Introduced: 9 Dec 2025

CVE-2025-14330  (opens in a new tab)

How to fix?

Upgrade Chainguard firefox to version 140.6-r0 or higher.

NVD Description

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