CVE-2025-4085
Last modified
CVE-2025-4085 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. 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.. EPSS estimates a 0.24% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 138.0 |
| Mozilla | Thunderbird | < 138.0 |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1915280Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2025-28/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-31/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2025-4085?
How severe is CVE-2025-4085?
How do I fix CVE-2025-4085?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2025
- CVE-2025-40838Ericsson Indoor Connect 8855 contains a vulnerability where …7.5
- CVE-2025-4084Due to insufficient escaping of the special characters in th…5.7
- CVE-2025-40841Ericsson Indoor Connect 8855 versions prior to 2025.Q3 conta…4.3
- CVE-2025-40842Ericsson Indoor Connect 8855 versions prior to 2025.Q3 conta…6.1
- CVE-2025-40843CodeChecker is an analyzer tooling, defect database and view…7.8
- CVE-2025-40846Improper Input Validation, the returnUrl parameter in Accoun…7.1
- CVE-2025-4086A specially crafted filename containing a large number of en…6.5
- CVE-2025-4087A vulnerability was identified in Thunderbird where XPath pa…4.8
- CVE-2025-4088A security vulnerability in Thunderbird allowed malicious si…6.5
- CVE-2025-40885A SQL Injection vulnerability was discovered in the Smart Po…6.5
- CVE-2025-40886A SQL Injection vulnerability was discovered in the Alert fu…8.8
- CVE-2025-40887A SQL Injection vulnerability was discovered in the Alert fu…6.5
Are you affected by CVE-2025-4085?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST