CRITICAL🚩 CISA KEV⚡ EXPLOIT🇵🇱 Wersja polska

CVE-2020-7247

CVSS 9.8v3.1pub. 2020-01-29upd. 2025-11-07

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Canonical Ubuntu
OS
Canonical
18.0419.10
Debian
OS
Debian
10.09.0
Fedora Project Fedora
OS
Fedoraproject
32
Openbsd Opensmtpd
APP
Openbsd
6.6

CISA KEV — detailsi

Vendori: OpenBSD
Producti: OpenSMTPD
Added to KEVi: March 25, 2022
Remediation deadline (US Federal)i: April 15, 2022(overdue)

🇺🇸CISA KEV (original)↗

Required action (CISA)i

Apply updates per vendor instructions.

CISA descriptioni

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.

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