{"id":"CVE-2000-0491","url":"https://www.cyber-defence.io/tools/cve/CVE-2000-0491","generatedAt":"2026-10-27T20:51:23.378Z","title":"Buffer overflow in the XDMCP parsing code of GNOME gdm, KDE kdm, and wdm allows remote attackers to execute arbitrary commands or cause a denial of service via a long FORWARD_QUERY request.","description":"Buffer overflow in the XDMCP parsing code of GNOME gdm, KDE kdm, and wdm allows remote attackers to execute arbitrary commands or cause a denial of service via a long FORWARD_QUERY request.","published":"2000-05-24T04:00:00.000Z","lastModified":"2026-06-16T21:51:51.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":10,"severity":"HIGH","vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C"},"cwe":[],"affected":["gnome/gdm","caldera/openlinux","suse/suse linux"],"epss":{"score":0.17776,"percentile":0.97144,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":2,"verified":true,"firstPublished":"2000-05-22","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":19948,"kind":"exploit","title":"gdm 1.0.x/2.0.x BETA/2.2.0 - XDMCP Buffer Overflow (2)","url":"https://www.exploit-db.com/exploits/19948","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/remote/19948.c","file":"exploits/linux/remote/19948.c","published":"2000-05-22","added":"2000-05-22","updated":"2012-07-19","author":"AbraxaS","type":"remote","platform":"linux","port":null,"verified":true,"codes":["CVE-2000-0491","OSVDB-11754"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://www.securityfocus.com/bid/1233/info"},{"edbId":19947,"kind":"exploit","title":"gdm 1.0.x/2.0.x BETA/2.2.0 - XDMCP Buffer Overflow (1)","url":"https://www.exploit-db.com/exploits/19947","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/remote/19947.c","file":"exploits/linux/remote/19947.c","published":"2000-05-22","added":"2000-05-22","updated":"2012-07-19","author":"Chris Evans","type":"remote","platform":"linux","port":null,"verified":true,"codes":["CVE-2000-0491","OSVDB-11754"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://www.securityfocus.com/bid/1233/info"}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 17.8%, higher than 97% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"ftp://ftp.calderasystems.com/pub/OpenLinux/security/CSSA-2000-013.0.txt","tags":["Patch","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://archives.neohapsis.com/archives/bugtraq/2000-05/0241.html","source":"cve@mitre.org"},{"url":"http://archives.neohapsis.com/archives/bugtraq/2000-06/0025.html","source":"cve@mitre.org"},{"url":"http://www.novell.com/linux/security/advisories/suse_security_announce_49.html","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/1233","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/1279","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/1370","source":"cve@mitre.org"},{"url":"ftp://ftp.calderasystems.com/pub/OpenLinux/security/CSSA-2000-013.0.txt","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://archives.neohapsis.com/archives/bugtraq/2000-05/0241.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://archives.neohapsis.com/archives/bugtraq/2000-06/0025.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.novell.com/linux/security/advisories/suse_security_announce_49.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/1233","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/1279","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/1370","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2000-0491","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."}