vulnerability
Ubuntu: USN-7991-1 (CVE-2026-0891): Thunderbird vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 9 | (AV:N/AC:M/Au:N/C:C/I:C/A:C) | Feb 2, 2026 | Feb 4, 2026 | Feb 4, 2026 |
Severity
9
CVSS
(AV:N/AC:M/Au:N/C:C/I:C/A:C)
Published
Feb 2, 2026
Added
Feb 4, 2026
Modified
Feb 4, 2026
Description
Multiple security issues were discovered in Thunderbird. If a user were
tricked into opening a specially crafted website in a browsing context,
an attacker could potentially exploit these to cause a denial of service,
obtain sensitive information, bypass security restrictions, cross-site
tracing, or execute arbitrary code.
Solution
ubuntu-upgrade-thunderbird
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