CVE-2025-10529 Affecting firefox package, versions <0:140.3.0-1.el9_4


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.05% (14th percentile)

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  • Snyk IDSNYK-RHEL9-FIREFOX-13332975
  • published6 Oct 2025
  • disclosed16 Sept 2025

Introduced: 16 Sep 2025

CVE-2025-10529  (opens in a new tab)

How to fix?

Upgrade RHEL:9 firefox to version 0:140.3.0-1.el9_4 or higher.
This issue was patched in RHSA-2025:17378.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

This vulnerability affects Firefox < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3.

CVSS Base Scores

version 3.1