Arbitrary Code Injection Affecting Firefox package, versions [,136)
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- published10 Mar 2025
- disclosed4 Mar 2025
- creditSurya Dev Singh
Introduced: 4 Mar 2025
NewCVE-2025-1936 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade Firefox to version 136 or higher.
Overview
Affected versions of this package are vulnerable to Arbitrary Code Injection due to improper handling of null bytes %00 in jar: URLs. An attacker can append %00 followed by a fake file extension to a jar: URL, causing the system to ignore the null byte when retrieving the file content but use the fake extension to determine the file type