Local Code Execution Vulnerability in Firefox for Windows
CVE-2025-4084

5.7MEDIUM

Key Information:

Vendor

Mozilla
Status
Firefox Esr
Thunderbird
Vendor
CVE Published:
29 April 2025

What is CVE-2025-4084?

A vulnerability in Firefox for Windows arises from insufficient escaping of special characters in the 'copy as cURL' feature. This flaw can be exploited by an attacker who tricks users into executing a crafted cURL command, potentially leading to local code execution on their system. The affected versions include Firefox ESR prior to 128.10 and 115.23, as well as Thunderbird ESR below 128.10. Users are strongly advised to update to the latest versions to mitigate the risks associated with this vulnerability.

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Affected Version(s)

Firefox ESR < 128.10

Firefox ESR < 115.23

Thunderbird < 128.10

References

https://bugzilla.mozilla.org/buglist.cgi?bug_id=1949994%2...
https://www.mozilla.org/security/advisories/mfsa2025-29/
https://www.mozilla.org/security/advisories/mfsa2025-30/

CVSS V3.1

Score:
5.7
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Ameen Basha M K
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