Improper Encoding or Escaping of Output Affecting firefox package, versions <0:128.11.0-1.el9_6


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.27% (19th percentile)

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  • Snyk IDSNYK-RHEL9-FIREFOX-10260596
  • published29 May 2025
  • disclosed27 May 2025

Introduced: 27 May 2025

CVE-2025-5264  (opens in a new tab)
CWE-116  (opens in a new tab)

How to fix?

Upgrade RHEL:9 firefox to version 0:128.11.0-1.el9_6 or higher.
This issue was patched in RHSA-2025:8293.

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.

Due to insufficient escaping of the newline character in the “Copy as cURL” feature, an attacker could trick a user into using this command, potentially leading to local code execution on the user's system. This vulnerability was fixed in Firefox 139, Firefox ESR 115.24, Firefox ESR 128.11, Thunderbird 139, and Thunderbird 128.11.

CVSS Base Scores

version 3.1