vulnerability
Ubuntu: (Multiple Advisories) (CVE-2021-38495): Thunderbird vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:M/Au:N/C:P/I:P/A:P) | Sep 22, 2021 | Jan 22, 2022 | Mar 27, 2026 |
Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
Sep 22, 2021
Added
Jan 22, 2022
Modified
Mar 27, 2026
Description
Mozilla developers reported memory safety bugs present in Thunderbird 78.13.0. 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 Thunderbird < 91.1 and Firefox ESR < 91.1.
Solution
ubuntu-upgrade-thunderbird
References
Rapid7 Labs
2026 Global Threat Landscape Report
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