Exposure of System Data to an Unauthorized Control Sphere Affecting firefox-x11 package, versions <0:140.4.0-3.el9_6


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.05% (14th percentile)

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  • Snyk IDSNYK-RHEL9-FIREFOXX11-13584146
  • published17 Oct 2025
  • disclosed14 Oct 2025

Introduced: 14 Oct 2025

NewCVE-2025-11710  (opens in a new tab)
CWE-497  (opens in a new tab)

How to fix?

Upgrade RHEL:9 firefox-x11 to version 0:140.4.0-3.el9_6 or higher.
This issue was patched in RHSA-2025:18155.

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 RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

A compromised web process using malicious IPC messages could have caused the privileged browser process to reveal blocks of its memory to the compromised process. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.

CVSS Base Scores

version 3.1