CVE-2020-7247 · agentprime

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…

CVSS 9.8 CriticalCriticalIn CISA KEVEPSS 0.99 · 99th percentile

Critical, because:

In CISA’s KEV catalogue since 25 Mar 2022: it is known to be exploited.
CVSS score 9.8: 9.0 or more.
CVSS score 9.8 (7.0 or more) and EPSS 0.99 (0.1 or more): a high score and a real chance of exploitation in the next 30 days.

How we decide what’s critical

Published by the CVE Program (CNA: mitre) at 29 Jan 2020, 15:53 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Not given	Not given	affected n/a

Identifiers

CVE-2020-7247

CNA

mitre

Weakness (CWE)

CWE-755

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
9.8	Critical	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	ADP (CISA-ADP)

CISA KEV Listed since 25 Mar 2022: known to be exploited.
EPSS 0.99, the 99th percentile, on 7 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 29 Jan 2020. New records show when each source confirmed them.

Sources

References from the CNA

www.openbsd.org/security.html confirm
www.openwall.com/lists/oss-security/2020/01/28/3
github.com/openbsd/src/commit/9dcfda045474d8903224d175907bfc29761dcb45 confirm
packetstormsecurity.com/files/156137/OpenBSD-OpenSMTPD-Privilege-Escalation-Code-Execution.html
seclists.org/bugtraq/2020/Jan/51 mailing-listbugtraq
www.debian.org/security/2020/dsa-4611 vendor-advisorydebian
packetstormsecurity.com/files/156145/OpenSMTPD-6.6.2-Remote-Code-Execution.html
www.kb.cert.org/vuls/id/390745 third-party-advisorycert-vn
seclists.org/fulldisclosure/2020/Jan/49 mailing-listfulldisc
packetstormsecurity.com/files/156249/OpenSMTPD-MAIL-FROM-Remote-Code-Execution.html
packetstormsecurity.com/files/156295/OpenSMTPD-6.6.1-Local-Privilege-Escalation.html
usn.ubuntu.com/4268-1/ vendor-advisoryubuntu
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OPH4QU4DNVHA7ACFXMYFCEP5PSXXPN4E/ vendor-advisoryfedora
packetstormsecurity.com/files/162093/OpenBSD-OpenSMTPD-6.6-Remote-Code-Execution.html

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.