{"id":"CVE-2001-1518","aliases":["EUVD-2001-1495","GHSA-7vj4-8vxm-9cjx"],"status":"published","title":"RunAs (runas.exe) in Windows 2000 only creates one session instance at a time, which allows local...","description":"RunAs (runas.exe) in Windows 2000 only creates one session instance at a time, which allows local users to cause a denial of service (RunAs hang) by creating a named pipe session with the authentication server without any request for service.  NOTE: the vendor disputes this vulnerability, however the vendor also presents a scenario in which other users could be affected if running on a Terminal Server. Therefore this is a vulnerability.","severity":{"version":"2.0","score":2.1,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:P","level":"low","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.03491,"percentile":0.89223,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"published":"2001-12-31T05:00:00Z","modified":"2026-06-16T21:56:25Z","exploits":[{"source":"exploitdb","id":"EDB-21099","title":"Microsoft Windows Server 2000 - RunAs Service Denial of Service","type":"dos","platform":"windows","date":"2001-12-11","verified":true,"url":"https://www.exploit-db.com/exploits/21099"}],"products":[{"vendor":"microsoft","product":"windows_2000"}],"references":[{"url":"http://cert.uni-stuttgart.de/archive/bugtraq/2001/11/msg00100.html","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://www.securityfocus.com/bid/3291","tags":["vdb-entry","x_refsource_BID","x_transferred","Exploit"]},{"url":"http://www.iss.net/security_center/static/7533.php","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://online.securityfocus.com/archive/1/236113","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2001-1518"},{"url":"https://github.com/advisories/GHSA-7vj4-8vxm-9cjx"}],"sources":{"cve":[{"id":"CVE-2001-1518","description":"RunAs (runas.exe) in Windows 2000 only creates one session instance at a time, which allows local users to cause a denial of service (RunAs hang) by creating a named pipe session with the authentication server without any request for service.  NOTE: the vendor disputes this vulnerability, however the vendor also presents a scenario in which other users could be affected if running on a Terminal Server. Therefore this is a vulnerability.","status":"published","published":"2005-07-14T04:00:00Z","modified":"2024-09-16T17:38:23.072Z","updated_at":"2026-11-02T14:34:42.680977Z"}],"euvd":[{"id":"EUVD-2001-1495","description":"RunAs (runas.exe) in Windows 2000 only creates one session instance at a time, which allows local users to cause a denial of service (RunAs hang) by creating a named pipe session with the authentication server without any request for service.  NOTE: the vendor disputes this vulnerability, however the vendor also presents a scenario in which other users could be affected if running on a Terminal Server. Therefore this is a vulnerability.","status":"published","published":"2005-07-14T04:00:00Z","modified":"2024-09-16T17:38:23Z","updated_at":"2026-11-03T00:55:40.170355Z"}],"ghsa":[{"id":"GHSA-7vj4-8vxm-9cjx","title":"RunAs (runas.exe) in Windows 2000 only creates one session instance at a time, which allows local...","description":"RunAs (runas.exe) in Windows 2000 only creates one session instance at a time, which allows local users to cause a denial of service (RunAs hang) by creating a named pipe session with the authentication server without any request for service.  NOTE: the vendor disputes this vulnerability, however the vendor also presents a scenario in which other users could be affected if running on a Terminal Server. Therefore this is a vulnerability.","status":"published","published":"2022-04-30T18:18:11Z","modified":"2023-01-30T05:05:41Z","updated_at":"2026-11-02T14:47:20.238022Z"}],"nvd":[{"id":"CVE-2001-1518","description":"RunAs (runas.exe) in Windows 2000 only creates one session instance at a time, which allows local users to cause a denial of service (RunAs hang) by creating a named pipe session with the authentication server without any request for service.  NOTE: the vendor disputes this vulnerability, however the vendor also presents a scenario in which other users could be affected if running on a Terminal Server. Therefore this is a vulnerability.","status":"published","published":"2001-12-31T05:00:00Z","modified":"2026-06-16T21:56:25.433Z","cvss":[{"version":"2.0","score":2.1,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:P","level":"low","assessor":"primary"}],"updated_at":"2026-11-02T14:00:41.313877Z"}]}}