CVE-2018-15688

Name: CVE-2018-15688
Creator: NVD / NIST
Published: 2018-10-26T14:29:00.897+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.68%

Last modified Jun 17, 2026

CVE-2018-15688 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A buffer overflow vulnerability in the dhcp6 client of systemd allows a malicious dhcp6 server to overwrite heap memory in systemd-networkd. Affected releases are systemd: versions up to and including 239.. EPSS estimates a 1.68% chance of exploitation in the next 30 days.

Description

A buffer overflow vulnerability in the dhcp6 client of systemd allows a malicious dhcp6 server to overwrite heap memory in systemd-networkd. Affected releases are systemd: versions up to and including 239.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

1.68%

74.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Systemd Project	Systemd	<= 239
Debian	Debian Linux	8.0
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	18.10
Redhat	Enterprise Linux Desktop	7.0
Redhat	Enterprise Linux Server	7.0
Redhat	Enterprise Linux Server Aus	7.6
Redhat	Enterprise Linux Server Eus	7.6
Redhat	Enterprise Linux Server Tus	7.6
Redhat	Enterprise Linux Workstation	7.0

References

http://www.securityfocus.com/bid/105745Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHBA-2019:0327Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3665Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0049Third Party Advisory
https://github.com/systemd/systemd/pull/10518Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00017.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/201810-10Third Party Advisory
https://usn.ubuntu.com/3806-1/Third Party Advisory
https://usn.ubuntu.com/3807-1/Third Party Advisory
http://www.securityfocus.com/bid/105745Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHBA-2019:0327Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3665Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0049Third Party Advisory
https://github.com/systemd/systemd/pull/10518Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00017.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/201810-10Third Party Advisory
https://usn.ubuntu.com/3806-1/Third Party Advisory
https://usn.ubuntu.com/3807-1/Third Party Advisory

Timeline

Published: Oct 26, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-15688?

How severe is CVE-2018-15688?

CVE-2018-15688 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.68% probability of exploitation in the next 30 days.

How do I fix CVE-2018-15688?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-15688?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST