Exim Privilege Escalation Vulnerability

Added to KEV
2022-03-25
Federal due date
2022-04-15
Vendor
Exim
Product
Exim
EPSS
91.3th percentile (score 0.065, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2010-4345

CISA short description

Exim allows local users to gain privileges by leveraging the ability of the exim user account to specify an alternate configuration file with a directive that contains arbitrary commands.

Required action

Apply updates per vendor instructions.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.