vulnerability
Arch Linux: Arbitrary code execution (CVE-2020-26970)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 9 | (AV:N/AC:M/Au:N/C:C/I:C/A:C) | Dec 9, 2020 | Jul 11, 2025 | Nov 27, 2025 |
Severity
9
CVSS
(AV:N/AC:M/Au:N/C:C/I:C/A:C)
Published
Dec 9, 2020
Added
Jul 11, 2025
Modified
Nov 27, 2025
Description
When reading SMTP server status codes, Thunderbird before 78.5.1 writes an integer value to a position on the stack that is intended to contain just one byte. Depending on processor architecture and stack layout, this leads to stack corruption that may be exploitable.
Solution
arch-linux-upgrade-latest
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