CVE-2020-7247
CVSS v3
9.8
CRITICAL
EPSS Score
94.1 %
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
Description
smtp_mailaddr in smtp_session.c in OpenSMTPD 6.6, as used in OpenBSD 6.6 and other products, allows remote attackers to execute arbitrary commands as root via a crafted SMTP session, as demonstrated by shell metacharacters in a MAIL FROM field. This affects the "uncommented" default configuration. The issue exists because of an incorrect return value upon failure of input validation.
CISA Known Exploited Vulnerability
- Date Added
- 2022-03-25
- Patch Due Date
- 2022-04-15
- Ransomware Use
- Unknown
Frequently asked questions
What is CVE-2020-7247?
smtp_mailaddr in smtp_session.c in OpenSMTPD 6.6, as used in OpenBSD 6.6 and other products, allows remote attackers to execute arbitrary commands as root via a crafted SMTP session, as demonstrated by shell metacharacters in a MAIL FROM field. This affects the "uncommented" default configuration. The issue exists because of an incorrect return value upon failure of input validation.
Is CVE-2020-7247 actively exploited?
Yes. CVE-2020-7247 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2022-04-15.
What is the CVSS score for CVE-2020-7247?
CVE-2020-7247 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2020-7247 affecting your environment?
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