{"id":"CVE-2018-15688","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-15688","generatedAt":"2026-10-28T22:43:40.009Z","title":"A buffer overflow vulnerability in the dhcp6 client of systemd allows a malicious dhcp6 server to overwrite heap memory in systemd-networkd.","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.","published":"2018-10-26T14:29:01.000Z","lastModified":"2026-06-17T01:42:56.000Z","status":"Modified","sourceIdentifier":"security@ubuntu.com","cvss":{"version":"3.1","score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-120"],"affected":["systemd project/systemd","debian/debian linux","canonical/ubuntu linux","redhat/enterprise linux desktop","redhat/enterprise linux server","redhat/enterprise linux server aus","redhat/enterprise linux server eus","redhat/enterprise linux server tus","redhat/enterprise linux workstation"],"epss":{"score":0.01666,"percentile":0.76626,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.67%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://www.securityfocus.com/bid/105745","tags":["Third Party Advisory","VDB Entry"],"source":"security@ubuntu.com"},{"url":"https://access.redhat.com/errata/RHBA-2019:0327","tags":["Third Party Advisory"],"source":"security@ubuntu.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:3665","tags":["Third Party Advisory"],"source":"security@ubuntu.com"},{"url":"https://access.redhat.com/errata/RHSA-2019:0049","tags":["Third Party Advisory"],"source":"security@ubuntu.com"},{"url":"https://github.com/systemd/systemd/pull/10518","tags":["Patch","Third Party Advisory"],"source":"security@ubuntu.com"},{"url":"https://lists.debian.org/debian-lts-announce/2018/11/msg00017.html","tags":["Mailing List","Third Party Advisory"],"source":"security@ubuntu.com"},{"url":"https://security.gentoo.org/glsa/201810-10","tags":["Third Party Advisory"],"source":"security@ubuntu.com"},{"url":"https://usn.ubuntu.com/3806-1/","tags":["Third Party Advisory"],"source":"security@ubuntu.com"},{"url":"https://usn.ubuntu.com/3807-1/","tags":["Third Party Advisory"],"source":"security@ubuntu.com"},{"url":"http://www.securityfocus.com/bid/105745","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHBA-2019:0327","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:3665","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2019:0049","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/systemd/systemd/pull/10518","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2018/11/msg00017.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201810-10","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3806-1/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3807-1/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-15688","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}