CVE-2025-4084 Affecting firefox package, versions *


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.03% (9th percentile)

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  • Snyk IDSNYK-UBUNTU2004-FIREFOX-9910326
  • published1 May 2025
  • disclosed29 Apr 2025

Introduced: 29 Apr 2025

NewCVE-2025-4084  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:20.04 firefox.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

Due to insufficient escaping of the 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 bug only affects Firefox for Windows. Other versions of Firefox are unaffected. This vulnerability affects Firefox ESR < 128.10, Firefox ESR < 115.23, and Thunderbird < 128.10.

CVSS Base Scores

version 3.1