Exim Out-of-bounds Write Vulnerability

Added to KEV
2022-03-03
Federal due date
2022-03-17
Vendor
Exim
Product
Exim Internet Mailer
EPSS
99.6th percentile (score 0.903, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2019-16928

CISA short description

Exim contains an out-of-bounds write vulnerability which can allow for remote code execution.

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.