{"id":"CVE-1999-0168","title":"The portmapper may act as a proxy and redirect service requests from an attacker, making the request appear to come from the local host, possibly bypassing authentication that would otherwise have taken place","summary":"The portmapper may act as a proxy and redirect service requests from an attacker, making the request appear to come from the local host, possibly bypassing authentication that would otherwise have taken place.  For example, NFS file syst…","severity":"high","cvss":7.5,"cvssVector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","published":"1992-06-04","updated":"2026-06-16","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-1999-0168","references":[{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0168","label":"cve@mitre.org"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0168","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.01774,"epssPercentile":0.76872,"ingestedAt":"2026-06-19T03:39:00.704Z","slug":"CVE-1999-0168","body":"## Overview\n\nThe portmapper may act as a proxy and redirect service requests from an attacker, making the request appear to come from the local host, possibly bypassing authentication that would otherwise have taken place.  For example, NFS file systems could be mounted through the portmapper despite export restrictions.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":41.3,"likelihood":0.4,"exploitation":0,"ransomware":0},"changes":[]}