VULNERABILITY INTELLIGENCE
CVE-2025-4085
CVSS score7.1 HIGH
EPSS probability0.30%
CISA KEVNot currently listed
Published2025-04-29
Last modified2026-09-30
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Description
An attacker with control over a content process could potentially leverage the privileged UITour actor to leak sensitive information or escalate privileges. This vulnerability was fixed in Firefox 138 and Thunderbird 138.
Weakness classification
- 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-269
Primary references
- security@mozilla.org — Permissions Required
- security@mozilla.org — Vendor Advisory
- security@mozilla.org — Vendor Advisory