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.
Metrics
Affected Vendors & Products
Advisories
Source | ID | Title |
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DSA-4611-1 | opensmtpd security update |
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USN-4268-1 | OpenSMTPD vulnerability |
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USN-4875-1 | OpenSMTPD vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 16 Jul 2025 13:45:00 +0000
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Tue, 04 Feb 2025 21:15:00 +0000
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Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2025-07-30T01:45:50.129Z
Reserved: 2020-01-20T00:00:00.000Z
Link: CVE-2020-7247

Updated: 2024-08-04T09:25:48.402Z

Status : Analyzed
Published: 2020-01-29T16:15:12.897
Modified: 2025-04-03T19:43:07.237
Link: CVE-2020-7247

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