Is CVE-2018-16864 being actively exploited?

CVE-2018-16864 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2018-16864?

CVE-2018-16864 has a CVSS 3.1 base score of 7.8 (HIGH).

CVE-2018-16864

HIGH · CVSS 7.8EPSS 0.7%EU EUVD

An allocation of memory without limits, that could result in the stack clashing with another memory region, was discovered in systemd-journald when a program with long command line arguments calls syslog. A local attacker may use this flaw to crash systemd-journald or escalate his privileges. Versions through v240 are vulnerable.

Key facts

CVSS score: 7.8 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-770
EPSS score: 0.7% (53th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2018-8655)
Published: January 11, 2019
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2018-8655 in the EU Vulnerability Database. Last updated in EUVD on June 9, 2025.

View on the EU Vulnerability Database

Affected products

canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
debian / debian linux
debian / debian linux
oracle / communications session border controller
oracle / communications session border controller
oracle / communications session border controller
oracle / enterprise communications broker
oracle / enterprise communications broker
redhat / enterprise linux desktop
redhat / enterprise linux server
redhat / enterprise linux server
redhat / enterprise linux server
redhat / enterprise linux server
redhat / enterprise linux server aus
redhat / enterprise linux server aus
redhat / enterprise linux server eus
redhat / enterprise linux server eus
redhat / enterprise linux server tus
redhat / enterprise linux server tus
redhat / enterprise linux workstation
systemd project / systemd

Certified products that may be affected

2 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Red Hat Enterprise Linux 7 OpenSSH Server Cryptographic Module - Red Hat®, Inc. - FIPS 140 3891 - historical
Red Hat Enterprise Linux 7.6 - Red Hat, Inc. - Common Criteria CCEVS-VR-VID-11039-2020 - archived

References

http://www.openwall.com/lists/oss-security/2021/07/20/2(Mailing List)
http://www.securityfocus.com/bid/106523(Third Party Advisory, VDB Entry)
https://access.redhat.com/errata/RHBA-2019:0327(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2019:0049(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2019:0204(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2019:0271(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2019:0342(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2019:0361(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2019:2402(Third Party Advisory)
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16864(Issue Tracking, Patch, Third Party Advisory)
https://lists.debian.org/debian-lts-announce/2019/01/msg00016.html(Third Party Advisory)
https://security.gentoo.org/glsa/201903-07(Third Party Advisory)
https://security.netapp.com/advisory/ntap-20190117-0001/(Third Party Advisory)
https://usn.ubuntu.com/3855-1/(Third Party Advisory)
https://www.debian.org/security/2019/dsa-4367(Third Party Advisory)
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html(Patch, Third Party Advisory)
https://www.qualys.com/2019/01/09/system-down/system-down.txt(Exploit, Third Party Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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