{"id":"CVE-2002-0823","aliases":["EUVD-2002-0815","GHSA-44hf-w7h9-vw7g"],"status":"published","title":"Buffer overflow in Winhlp32.exe allows remote attackers to execute arbitrary code via an HTML...","description":"Buffer overflow in Winhlp32.exe allows remote attackers to execute arbitrary code via an HTML document that calls the HTML Help ActiveX control (HHCtrl.ocx) with a long pathname in the Item parameter.","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":0.26175,"percentile":0.98008,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"published":"2002-08-12T04:00:00Z","modified":"2026-06-16T21:58:12Z","exploits":[{"source":"exploitdb","id":"EDB-21485","title":"Microsoft Windows 95/98/2000/NT 4.0 - WinHlp Item Buffer Overflow","type":"remote","platform":"windows","date":"2002-05-27","verified":true,"url":"https://www.exploit-db.com/exploits/21485"}],"products":[{"vendor":"microsoft","product":"windows_2000"},{"vendor":"microsoft","product":"windows_help"}],"references":[{"url":"http://www.securityfocus.com/bid/4857","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://www.osvdb.org/2991","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"http://www.iss.net/security_center/static/9746.php","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://support.microsoft.com/default.aspx?scid=kb%3Ben-us%3Bq293338","tags":["vendor-advisory","x_refsource_MSKB","x_transferred"]},{"url":"http://marc.info/?l=bugtraq\u0026m=102822806329440\u0026w=2","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2002-0823"},{"url":"http://support.microsoft.com/default.aspx?scid=kb;en-us;q293338"},{"url":"https://github.com/advisories/GHSA-44hf-w7h9-vw7g"}],"sources":{"cve":[{"id":"CVE-2002-0823","description":"Buffer overflow in Winhlp32.exe allows remote attackers to execute arbitrary code via an HTML document that calls the HTML Help ActiveX control (HHCtrl.ocx) with a long pathname in the Item parameter.","status":"published","published":"2003-04-02T05:00:00Z","modified":"2024-08-08T03:03:48.996Z","updated_at":"2026-11-02T14:33:55.303902Z"}],"euvd":[{"id":"EUVD-2002-0815","description":"Buffer overflow in Winhlp32.exe allows remote attackers to execute arbitrary code via an HTML document that calls the HTML Help ActiveX control (HHCtrl.ocx) with a long pathname in the Item parameter.","status":"published","published":"2003-04-02T05:00:00Z","modified":"2024-08-08T03:03:48Z","updated_at":"2026-11-03T01:14:59.095718Z"}],"ghsa":[{"id":"GHSA-44hf-w7h9-vw7g","title":"Buffer overflow in Winhlp32.exe allows remote attackers to execute arbitrary code via an HTML...","description":"Buffer overflow in Winhlp32.exe allows remote attackers to execute arbitrary code via an HTML document that calls the HTML Help ActiveX control (HHCtrl.ocx) with a long pathname in the Item parameter.","status":"published","published":"2022-04-30T18:19:59Z","modified":"2025-04-03T03:47:44Z","updated_at":"2026-11-02T15:00:37.983289Z"}],"nvd":[{"id":"CVE-2002-0823","description":"Buffer overflow in Winhlp32.exe allows remote attackers to execute arbitrary code via an HTML document that calls the HTML Help ActiveX control (HHCtrl.ocx) with a long pathname in the Item parameter.","status":"published","published":"2002-08-12T04:00:00Z","modified":"2026-06-16T21:58:12.247Z","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":"2026-11-02T14:00:42.827505Z"}]}}