CVE-2025-10529 Affecting firefox package, versions <140.3-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.28% (21st percentile)

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  • Snyk IDSNYK-WOLFILATEST-FIREFOX-17762865
  • published1 Jul 2026
  • disclosed16 Sept 2025

Introduced: 16 Sep 2025

CVE-2025-10529  (opens in a new tab)

How to fix?

Upgrade Wolfi firefox to version 140.3-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 Wolfi. See How to fix? for Wolfi relevant fixed versions and status.

Same-origin policy bypass in the Layout component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.

CVSS Base Scores

version 3.1