Information disclosure in Firefox for Android and Mozilla Firefox - CVE-2025-4085
Published: April 29, 2025
Vulnerability identifier: #VU108051
CSH Severity: Medium
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-4085
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the UITour actor. A remote attacker can gain unauthorized access to sensitive information on the system.
Affected software
Firefox for Android
Mozilla Firefox
Ubuntu
Mozilla Thunderbird
thunderbird (Ubuntu package)
Mozilla Firefox
Ubuntu
Mozilla Thunderbird
thunderbird (Ubuntu package)
How to mitigate CVE-2025-4085
Install updates from vendor's website.
Firefox for Android - update to 138.0
Mozilla Firefox - update to 138.0
Mozilla Thunderbird - update to 138.0
thunderbird (Ubuntu package) - update to 1:140.7.1+build1-0ubuntu0.22.04.1
Mozilla Firefox - update to 138.0
Mozilla Thunderbird - update to 138.0
thunderbird (Ubuntu package) - update to 1:140.7.1+build1-0ubuntu0.22.04.1