Improper Input Validation Affecting Firefox package, versions [,143.0.3)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-UNMANAGED-FIREFOX-13169139
  • published1 Oct 2025
  • disclosed30 Sept 2025
  • creditNan Wang

Introduced: 30 Sep 2025

NewCVE-2025-11153  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Firefox to version 143.0.3 or higher.

Overview

Affected versions of this package are vulnerable to Improper Input Validation due to miscompilation in JIT component. An attacker can execute arbitrary code or cause unexpected behavior by providing crafted input.

CVSS Base Scores

version 4.0
version 3.1