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CVE-2020-7247: OpenSMTPD Remote Code Execution Vulnerability
OpenBSD OpenSMTPD · in CISA KEV since 2022-03-25
2022-03-25added to KEV
2022-04-15federal remediation due date
98.97%EPSS exploit probability (30 days) 99.9th percentile
9.8 CRITICALCVSS 3.1
Unknownknown ransomware use
786days from NVD publication to KEV
What it is
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 (CISA)
Apply updates per vendor instructions.
| CWE | CWE-755;CWE-78 |
|---|---|
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD published | 2020-01-29 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2020-7247.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.
Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.