CVE-2025-6424 Affecting firefox package, versions <0:128.12.0-1.el8_10.alma.1


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.08% (24th percentile)

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  • Snyk IDSNYK-ALMALINUX8-FIREFOX-10575402
  • published2 Jul 2025
  • disclosed1 Jul 2025

Introduced: 1 Jul 2025

NewCVE-2025-6424  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 firefox to version 0:128.12.0-1.el8_10.alma.1 or higher.
This issue was patched in ALSA-2025:10074.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

A use-after-free in FontFaceSet resulted in a potentially exploitable crash. This vulnerability affects Firefox < 140, Firefox ESR < 115.25, Firefox ESR < 128.12, Thunderbird < 140, and Thunderbird < 128.12.

CVSS Base Scores

version 3.1