Information disclosure in Mozilla products - CVE-2025-6425
Published: June 24, 2025
Vulnerability identifier: #VU111886
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-6425
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Mozilla
Affected software:
Firefox ESR
Mozilla Firefox
Firefox for Android
Firefox ESR
Mozilla Firefox
Firefox for Android
Detailed vulnerability description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to the WebCompat extension shipped with Firefox allows to enumerate resources and obtain a persistent UUID that identifies the browser, and persists between containers and normal/private browsing mode, but not profiles.
How to mitigate CVE-2025-6425
Install updates from vendor's website.