OpenSMTPD Remote Code Execution Vulnerability

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.

cat cve-2020-7247.json

Vendor: OpenBSD
Product: OpenSMTPD
CVSS: 9.8
EPSS (exploit probability): 98.9%
Status: kev
CISA patch-by (BOD 22-01): April 15, 2022
Published: March 25, 2022
Source: https://nvd.nist.gov/vuln/detail/CVE-2020-7247

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.

Added to CISA’s Known Exploited Vulnerabilities catalog on 2022-03-25. Required action per CISA: Apply updates per vendor instructions. Due date: 2022-04-15.

This is an auto-synced KEV catalog record pending a full 0dayNews write-up — see CISA’s KEV catalog and the NVD record linked above for primary sources.