CVE-2025-4089 Affecting firefox package, versions <138.0-1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

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  • Snyk IDSNYK-DEBIANUNSTABLE-FIREFOX-9910182
  • published1 May 2025
  • disclosed29 Apr 2025

Introduced: 29 Apr 2025

NewCVE-2025-4089  (opens in a new tab)

How to fix?

Upgrade Debian:unstable firefox to version 138.0-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

Due to insufficient escaping of special characters 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 affects Firefox < 138 and Thunderbird < 138.

CVSS Base Scores

version 3.1