CVE-2018-16866: The systemd Project systemd

Affected products, as the CNA wrote them
Vendor	Product	Versions
The systemd Project	systemd	affected from v221 to v239

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
4.3	Medium	3.0	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N	CNA (redhat)

CISA KEV Not listed.
EPSS 0.011, the 64th percentile, on 5 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 11 Jan 2019. New records show when each source confirmed them.

Sources

References from the CNA

www.debian.org/security/2019/dsa-4367 vendor-advisorydebian
security.netapp.com/advisory/ntap-20190117-0001/ confirm
www.qualys.com/2019/01/09/system-down/system-down.txt
bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16866 confirm
usn.ubuntu.com/3855-1/ vendor-advisoryubuntu
www.securityfocus.com/bid/106527 vdb-entrybid
security.gentoo.org/glsa/201903-07 vendor-advisorygentoo
www.openwall.com/lists/oss-security/2019/05/10/4 mailing-listmlist
seclists.org/bugtraq/2019/May/25 mailing-listbugtraq
packetstormsecurity.com/files/152841/System-Down-A-systemd-journald-Exploit.html
seclists.org/fulldisclosure/2019/May/21 mailing-listfulldisc
access.redhat.com/errata/RHSA-2019:2091 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2019:3222 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2020:0593 vendor-advisoryredhat

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.