Improper Validation of Unsafe Equivalence in Input Affecting firefox package, versions <0:140.3.0-1.el9_4


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.21% (12th percentile)

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  • Snyk IDSNYK-RHEL9-FIREFOX-18496645
  • published1 Aug 2026
  • disclosed30 May 2025

Introduced: 30 May 2025

CVE-2024-12224  (opens in a new tab)
CWE-1289  (opens in a new tab)

How to fix?

Upgrade RHEL:9 firefox to version 0:140.3.0-1.el9_4 or higher.
This issue was patched in RHSA-2025:17378.

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.

Improper Validation of Unsafe Equivalence in punycode by the idna crate from Servo rust-url allows an attacker to create a punycode hostname that one part of a system might treat as distinct while another part of that system would treat as equivalent to another hostname.

CVSS Base Scores

version 3.1