{"id":"CVE-2001-0909","aliases":["EUVD-2001-0892","GHSA-c64x-2qg4-rpqq"],"status":"published","title":"Buffer overflow in helpctr.exe program in Microsoft Help Center for Windows XP allows remote...","description":"Buffer overflow in helpctr.exe program in Microsoft Help Center for Windows XP allows remote attackers to execute arbitrary code via a long hcp: URL.","severity":{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.19739,"percentile":0.97422,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"published":"2001-11-21T05:00:00Z","modified":"2026-06-16T21:55:12Z","exploits":[{"source":"exploitdb","id":"EDB-22232","title":"Microsoft Windows XP - HCP URI Buffer Overflow","type":"dos","platform":"windows","date":"2001-11-21","verified":true,"url":"https://www.exploit-db.com/exploits/22232"}],"products":[{"vendor":"microsoft","product":"windows_xp"}],"references":[{"url":"http://www.securityfocus.com/bid/6802","tags":["vdb-entry","x_refsource_BID","x_transferred","Exploit","Vendor Advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/7605","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://marc.info/?l=bugtraq\u0026m=100638955422011\u0026w=2","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2001-0909"},{"url":"https://github.com/advisories/GHSA-c64x-2qg4-rpqq"}],"sources":{"cve":[{"id":"CVE-2001-0909","description":"Buffer overflow in helpctr.exe program in Microsoft Help Center for Windows XP allows remote attackers to execute arbitrary code via a long hcp: URL.","status":"published","published":"2004-09-01T04:00:00Z","modified":"2024-08-08T04:37:07.028Z","updated_at":"2026-11-02T14:34:43.032065Z"}],"euvd":[{"id":"EUVD-2001-0892","description":"Buffer overflow in helpctr.exe program in Microsoft Help Center for Windows XP allows remote attackers to execute arbitrary code via a long hcp: URL.","status":"published","published":"2004-09-01T04:00:00Z","modified":"2024-08-08T04:37:07Z","updated_at":"2026-11-03T01:14:49.590185Z"}],"ghsa":[{"id":"GHSA-c64x-2qg4-rpqq","title":"Buffer overflow in helpctr.exe program in Microsoft Help Center for Windows XP allows remote...","description":"Buffer overflow in helpctr.exe program in Microsoft Help Center for Windows XP allows remote attackers to execute arbitrary code via a long hcp: URL.","status":"published","published":"2022-04-30T18:16:57Z","modified":"2023-01-30T05:05:43Z","updated_at":"2026-11-02T14:47:20.238022Z"}],"nvd":[{"id":"CVE-2001-0909","description":"Buffer overflow in helpctr.exe program in Microsoft Help Center for Windows XP allows remote attackers to execute arbitrary code via a long hcp: URL.","status":"published","published":"2001-11-21T05:00:00Z","modified":"2026-06-16T21:55:12.457Z","cvss":[{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:00:41.313877Z"}]}}