Use After Free Affecting firefox package, versions <144.0-r0


Severity

Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
0.33% (26th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-FIREFOX-17764464
  • published1 Jul 2026
  • disclosed14 Oct 2025

Introduced: 14 Oct 2025

CVE-2025-11719  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Chainguard firefox to version 144.0-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.

Starting in Thunderbird 143, the use of the native messaging API by web extensions on Windows could lead to crashes caused by use-after-free memory corruption. This vulnerability was fixed in Firefox 144 and Thunderbird 144.

CVSS Base Scores

version 3.1