CVE-2025-11152 Affecting firefox package, versions <143.0.3-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.25% (17th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-FIREFOX-17763702
  • published1 Jul 2026
  • disclosed30 Sept 2025

Introduced: 30 Sep 2025

CVE-2025-11152  (opens in a new tab)

How to fix?

Upgrade Chainguard firefox to version 143.0.3-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.

Sandbox escape due to integer overflow in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 143.0.3.

CVSS Base Scores

version 3.1