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CVE-2020-28021

nvd nist
Published: May 6, 2021Modified: Jun 17, 2026

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8.8
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability: 2.8 / Impact: 5.9
Source: NVD

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 (1)

Products: Exim: Exim
1 product
Exim
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
From 4.00 to 4.94.2

References (2)

Timeline

No history available yet.