{"id":"CVE-2018-17158","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-17158","generatedAt":"2026-10-29T03:02:54.667Z","title":"In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5, an integer overflow error can occur when handling the client address length field in an NFSv4 request.","description":"In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5, an integer overflow error can occur when handling the client address length field in an NFSv4 request. Unprivileged remote users with access to the NFS server can crash the system by sending a specially crafted NFSv4 request.","published":"2018-12-04T15:29:00.000Z","lastModified":"2026-06-17T01:45:27.000Z","status":"Modified","sourceIdentifier":"secteam@freebsd.org","cvss":{"version":"3.0","score":7.5,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-190"],"affected":["freebsd/freebsd"],"epss":{"score":0.04414,"percentile":0.91296,"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 (4.41%). 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/106192","tags":["Third Party Advisory","VDB Entry"],"source":"secteam@freebsd.org"},{"url":"http://www.securitytracker.com/id/1042164","tags":["Third Party Advisory","VDB Entry"],"source":"secteam@freebsd.org"},{"url":"https://secuniaresearch.flexerasoftware.com/secunia_research/2018-24/","tags":["Third Party Advisory"],"source":"secteam@freebsd.org"},{"url":"https://security.freebsd.org/advisories/FreeBSD-SA-18:13.nfs.asc","tags":["Third Party Advisory"],"source":"secteam@freebsd.org"},{"url":"http://www.securityfocus.com/bid/106192","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1042164","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://secuniaresearch.flexerasoftware.com/secunia_research/2018-24/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.freebsd.org/advisories/FreeBSD-SA-18:13.nfs.asc","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-17158","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."}