March 25, 2022 · Applied Cybernetics Group
CVE-2020-7247 — OpenBSD OpenSMTPD
OpenSMTPD Remote Code Execution Vulnerability
- Added to KEV
2022-03-25- Federal due date
2022-04-15- Vendor
- OpenBSD
- Product
- OpenSMTPD
- EPSS
- 99.9th percentile (score 0.941, as of
2026-06-08) - NVD CVSS v3.1
- —
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2020-7247
CISA short description
smtp_mailaddr in smtp_session.c in OpenSMTPD, as used in OpenBSD and other products, allows remote attackers to execute arbitrary commands as root via a crafted SMTP session.
Required action
Apply updates per vendor instructions.