CVEvulnerability

CVE-2020-28021

8.8 HIGH Published 2021-05-06 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-05-06
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
9.0 HIGH — AV:N/AC:L/Au:S/C:C/I:C/A:C

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.

Affected configurations

• exim exim (>= 4.00 < 4.94.2)

References