vulnerability
Exim: New-line injection into spool header file (remote) (CVE-2020-28021)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 9 | (AV:N/AC:L/Au:S/C:C/I:C/A:C) | May 6, 2021 | May 13, 2021 | Apr 7, 2026 |
Severity
9
CVSS
(AV:N/AC:L/Au:S/C:C/I:C/A:C)
Published
May 6, 2021
Added
May 13, 2021
Modified
Apr 7, 2026
Description
Exim 4 before 4.94.2 has Improper Neutralization of Line Delimiters. An authenticated remote SMTP client can insert newline characters into a spool file (which indirectly leads to remote code execution as root) via AUTH= in a MAIL FROM command.
Solution
exim-upgrade-4_94_2
Rapid7 Labs
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