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CVE-2020-7247

CISA KEV

Published March 25, 2022 · Updated April 3, 2026

high
Official 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.

Affected Products

VendorProduct
OpenBSDOpenSMTPD

Patch Status

Patch by 2022-04-15

Recommended Actions

  1. Check if your systems use any of the affected products listed above.
  2. Apply vendor patches immediately if available.
  3. This vulnerability is in CISA's Known Exploited Vulnerabilities catalog — prioritize remediation.
  4. Monitor vendor advisories for updates and additional mitigations.
  5. Review logs for indicators of compromise related to CVE-2020-7247.