vulnerability
Ubuntu: USN-7991-1 (CVE-2025-3034): Thunderbird vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 9 | (AV:N/AC:M/Au:N/C:C/I:C/A:C) | Apr 1, 2025 | Jun 26, 2025 | Feb 4, 2026 |
Severity
9
CVSS
(AV:N/AC:M/Au:N/C:C/I:C/A:C)
Published
Apr 1, 2025
Added
Jun 26, 2025
Modified
Feb 4, 2026
Description
Memory safety bugs present in Firefox 136 and Thunderbird 136. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 137 and Thunderbird < 137.
Solution
ubuntu-upgrade-thunderbird
References
- CVE-2025-3034
- https://attackerkb.com/topics/CVE-2025-3034
- CWE-787
- UBUNTU-USN-7991-1
- URL-https://bugzilla.mozilla.org/buglist.cgi?bug_id=1894100%2C1934086%2C1950360
- URL-https://www.cve.org/CVERecord?id=CVE-2025-3034
- URL-https://www.mozilla.org/en-US/security/advisories/mfsa2025-20/#CVE-2025-3034
- URL-https://www.mozilla.org/security/advisories/mfsa2025-20/
- URL-https://www.mozilla.org/security/advisories/mfsa2025-23/
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