CVE-2025-4085 - CVE House
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Status published Unknown CVE-2025-4085

Potential information leakage and privilege escalation in UITour actor

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Andrew McCreight

References

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Affected Vendor

Affected Software

Firefox, Thunderbird
Vulnerable Versions:
138

Timeline

Official Publish: April 29th, 2025
Last Modified: April 13th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.