CVE-2025-4093 Affecting firefox-x11 package, versions <0:128.10.0-1.el9_5.alma.1


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.04% (11th percentile)

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  • Snyk IDSNYK-ALMALINUX9-FIREFOXX11-10117973
  • published13 May 2025
  • disclosed5 May 2025

Introduced: 5 May 2025

NewCVE-2025-4093  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 firefox-x11 to version 0:128.10.0-1.el9_5.alma.1 or higher.
This issue was patched in ALSA-2025:4443.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox-x11 package and not the firefox-x11 package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

Memory safety bug present in Firefox ESR 128.9, and Thunderbird 128.9. This bug showed evidence of memory corruption and we presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 128.10 and Thunderbird < 128.10.

CVSS Base Scores

version 3.1