CVE-2018-15688

HIGHNVD 8.88.8—Trending — 4 sources updated this week

8.8

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.

CVSS v3: 8.8
EG Score: 8.8(medium)
EPSS: 72.1%
KEV: Not listed

Published

October 26, 2018

Last Modified

June 9, 2025

References (18)

security@ubuntuhttp://www.securityfocus.com/bid/105745
security@ubuntuhttps://access.redhat.com/errata/RHBA-2019:0327
security@ubuntuhttps://access.redhat.com/errata/RHSA-2018:3665
security@ubuntuhttps://access.redhat.com/errata/RHSA-2019:0049
security@ubuntuhttps://github.com/systemd/systemd/pull/10518
security@ubuntuhttps://lists.debian.org/debian-lts-announce/2018/11/msg00017.html
security@ubuntuhttps://security.gentoo.org/glsa/201810-10
security@ubuntuhttps://usn.ubuntu.com/3806-1/
security@ubuntuhttps://usn.ubuntu.com/3807-1/
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/105745
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHBA-2019:0327
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2018:3665
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2019:0049
af854a3a-2127-422b-91ae-364da2661108https://github.com/systemd/systemd/pull/10518
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2018/11/msg00017.html

Patch Availability(4)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	network-manager-dev (1.10.6-2ubuntu1.1) @ bionic	2026-05-28	ubuntu
ubuntu	systemd (239-7ubuntu10.1) @ cosmic	2026-05-28	ubuntu
redhat	systemd-0:219-62.el7_6.2	2019-01-14	redhat
redhat	NetworkManager-1:1.12.0-8.el7_6	2018-11-27	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-120Buffer Copy without Checking Size (Classic Buffer Overflow)

All Vendor Advisories

(5)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 13× in last 7d / 19× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 01:39 UTCEG score recompute
2026-05-28 01:39 UTCVendor advisory
2026-05-28 01:39 UTCGHSA enrichment
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2018-15688?

CVE-2018-15688 is a high vulnerability published on October 26, 2018. 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.

When was CVE-2018-15688 disclosed?

CVE-2018-15688 was first published in the National Vulnerability Database on October 26, 2018, with the most recent update on June 9, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2018-15688 actively exploited?

CVE-2018-15688 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 72.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-15688?

CVE-2018-15688 has a CVSS v3 base score of 8.8 (NVD).

How do I remediate CVE-2018-15688?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-15688, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2018-15688

Published

Last Modified

References (18)

Patch Availability(4)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2018-15688?

Same vendor

Same CWE

CVE-2018-15688

📅 Published

🔄 Last Modified

🔗 References (18)

Patch Availability(4)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2018-15688?

🔗 Related CVEs(same vendor + same CWE)

Same vendor

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Published

Last Modified

References (18)

Frequently asked(5)

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