{"id":"CVE-2018-17157","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-17157","generatedAt":"2026-10-29T01:54:21.027Z","title":"In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5, an integer overflow error when handling opcodes can cause memory corruption by sending a specially crafted NFSv4 request.","description":"In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5, an integer overflow error when handling opcodes can cause memory corruption by sending a specially crafted NFSv4 request. Unprivileged remote users with access to the NFS server may be able to execute arbitrary code.","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":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-190"],"affected":["freebsd/freebsd"],"epss":{"score":0.24168,"percentile":0.97841,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.20572,"percentile":0.97451},{"date":"2026-09-22","score":0.24168,"percentile":0.97746}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 24.2%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"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":["Patch","Third Party Advisory","VDB Entry"],"source":"secteam@freebsd.org"},{"url":"https://secuniaresearch.flexerasoftware.com/secunia_research/2018-25/","tags":["Third Party Advisory"],"source":"secteam@freebsd.org"},{"url":"https://security.freebsd.org/advisories/FreeBSD-SA-18:13.nfs.asc","tags":["Patch","Vendor 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":["Patch","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://secuniaresearch.flexerasoftware.com/secunia_research/2018-25/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.freebsd.org/advisories/FreeBSD-SA-18:13.nfs.asc","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-17157","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."}