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CVE-2025-4084

5.7 · MEDIUM

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…

Published Apr 29, 2025CWE-116EPSS 0.44%

Overview

CVE-2025-4084 is a medium-severity vulnerability. It was published on April 29, 2025 and has a CVSS 3.1 base score of 5.7 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.7, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

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 was fixed in Firefox ESR 128.10, Firefox ESR 115.23, and Thunderbird 128.10.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refbugzilla.mozilla.org/buglist.cgi?bug_id=1949994%2C1956698%2C1960198Refwww.mozilla.org/security/advisories/mfsa2025-29/Refwww.mozilla.org/security/advisories/mfsa2025-30/Refwww.mozilla.org/security/advisories/mfsa2025-32/Reflists.debian.org/debian-lts-announce/2025/05/msg00022.html

How CyberStrike helps

Frequently asked questions

What is CVE-2025-4084?

CVE-2025-4084 is a medium-severity vulnerability. It was published on April 29, 2025 and has a CVSS 3.1 base score of 5.7 (MEDIUM).

How severe is CVE-2025-4084?

This vulnerability has a CVSS 3.1 base score of 5.7, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-4084?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-4084?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-4084 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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