ACTIVELY EXPLOITED

CVE-2010-4345: Exim Privilege Escalation Vulnerability

Facts
VendorExim
ProductExim
Actively exploitedYes
Added to CISA KEV25 Mar 2022
CISA federal deadline15 Apr 2022
Weakness (CWE)CWE-264

Required action (CISA's text)

Apply updates per vendor instructions.

Description (NVD)

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.

SOURCES

Other Exim flaws

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.