vulnerability
Ubuntu: USN-7991-1 (CVE-2025-4085): Thunderbird vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:S/C:C/I:P/A:N) | Apr 29, 2025 | Jun 26, 2025 | Apr 15, 2026 |
Severity
8
CVSS
(AV:N/AC:L/Au:S/C:C/I:P/A:N)
Published
Apr 29, 2025
Added
Jun 26, 2025
Modified
Apr 15, 2026
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.
Solution
ubuntu-upgrade-thunderbird
References
- CVE-2025-4085
- https://attackerkb.com/topics/CVE-2025-4085
- CWE-269
- EUVD-EUVD-2025-12686
- UBUNTU-USN-7991-1
- https://bugzilla.mozilla.org/show_bug.cgi?id=1915280
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-12686
- https://www.cve.org/CVERecord?id=CVE-2025-4085
- https://www.mozilla.org/en-US/security/advisories/mfsa2025-28/#CVE-2025-4085
- https://www.mozilla.org/security/advisories/mfsa2025-28/
- https://www.mozilla.org/security/advisories/mfsa2025-31/
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