CVE-2020-28026

Exim 4 before 4.94.2 has Improper Neutralization of Line Delimiters, relevant in non-default configurations that enable Delivery Status Notification (DSN). Certain uses of ORCPT= can place a newline into a spool header file, and indirectly allow unauthenticated remote attackers to execute arbitrary commands as root.

Affected products

Alt Linux, Astra Linux, Exim, Linuxmint, Suse, Ubuntu

Exim

< 4.94.2

Fix

Available

CVSS 3.1

9.8 CRITICAL

EPSS

9.3% (95th percentile)

NVD status

Modified

Published

2021-05-06