Information Leak and Privilege Escalation in Firefox and Thunderbird
CVE-2025-4085
7.1HIGH
What is CVE-2025-4085?
A security flaw has been identified in Firefox and Thunderbird where an attacker controlling a content process may exploit a privileged UITour actor. This exploitation could result in the unauthorized disclosure of sensitive information or lead to privilege escalation, compromising the overall security of affected systems.
Affected Version(s)
Firefox < 138
Thunderbird < 138
References
CVSS V3.1
Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged
Timeline
Vulnerability published
Vulnerability Reserved
Credit
Andrew McCreight