CVE-2025-5263 Affecting firefox package, versions <0:128.11.0-1.el10_0


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.04% (14th percentile)

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  • Snyk IDSNYK-ALMALINUX10-FIREFOX-10588091
  • published3 Jul 2025
  • disclosed5 Jun 2025

Introduced: 5 Jun 2025

CVE-2025-5263  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:10 firefox to version 0:128.11.0-1.el10_0 or higher.
This issue was patched in ALSA-2025:8341.

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:10 relevant fixed versions and status.

Error handling for script execution was incorrectly isolated from web content, which could have allowed cross-origin leak attacks. This vulnerability affects Firefox < 139, Firefox ESR < 115.24, Firefox ESR < 128.11, Thunderbird < 139, and Thunderbird < 128.11.

CVSS Base Scores

version 3.1