{"id":"CVE-2009-0133","aliases":["EUVD-2009-0142","GHSA-fpp9-rfqj-mpm6"],"status":"published","title":"Buffer overflow in Microsoft HTML Help Workshop 4.74 and earlier allows context-dependent...","description":"Buffer overflow in Microsoft HTML Help Workshop 4.74 and earlier allows context-dependent attackers to execute arbitrary code via a .hhp file with a long \"Index file\" field, possibly a related issue to CVE-2006-0564.","severity":{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.67049,"percentile":0.99303,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-119"],"published":"2009-01-15T17:00:00Z","modified":"2026-06-16T23:04:19Z","exploits":[{"source":"exploitdb","id":"EDB-10321","title":"Microsoft HTML Help Workshop 4.74 - '.hhp' Local Buffer Overflow (1)","type":"local","platform":"windows","date":"2009-12-05","verified":true,"url":"https://www.exploit-db.com/exploits/10321"},{"source":"exploitdb","id":"EDB-1470","title":"Microsoft HTML Help Workshop - '.hhp' Local Buffer Overflow (1)","type":"local","platform":"windows","date":"2006-02-06","verified":true,"url":"https://www.exploit-db.com/exploits/1470"},{"source":"exploitdb","id":"EDB-1488","title":"Microsoft HTML Help Workshop - '.hhp' Denial of Service","type":"dos","platform":"windows","date":"2006-02-10","verified":true,"url":"https://www.exploit-db.com/exploits/1488"},{"source":"exploitdb","id":"EDB-1490","title":"Microsoft HTML Help Workshop - '.hhp' Local Buffer Overflow (2)","type":"local","platform":"windows","date":"2006-02-11","verified":true,"url":"https://www.exploit-db.com/exploits/1490"},{"source":"exploitdb","id":"EDB-1495","title":"Microsoft HTML Help Workshop - '.hhp' Local Buffer Overflow (3)","type":"local","platform":"windows","date":"2006-02-14","verified":true,"url":"https://www.exploit-db.com/exploits/1495"},{"source":"exploitdb","id":"EDB-16631","title":"Microsoft HTML Help Workshop 4.74 - '.hhp' Index Buffer Overflow (Metasploit) (3)","type":"local","platform":"windows","date":"2010-09-25","verified":true,"url":"https://www.exploit-db.com/exploits/16631"},{"source":"exploitdb","id":"EDB-7727","title":"Microsoft HTML Workshop 4.74 - Universal Buffer Overflow","type":"local","platform":"windows","date":"2009-01-12","verified":true,"url":"https://www.exploit-db.com/exploits/7727"},{"source":"metasploit","id":"exploit/windows/fileformat/hhw_hhp_indexfile_bof","title":"HTML Help Workshop 4.74 (hhp Project File) Buffer Overflow","type":"exploit","platform":"Windows","date":"2009-01-17","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/windows/fileformat/hhw_hhp_indexfile_bof"}],"products":[{"vendor":"microsoft","product":"html_help_workshop"}],"references":[{"url":"https://www.exploit-db.com/exploits/7727","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred"]},{"url":"http://securityreason.com/securityalert/4914","tags":["third-party-advisory","x_refsource_SREASON","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-0133"},{"url":"https://github.com/advisories/GHSA-fpp9-rfqj-mpm6"}],"sources":{"cve":[{"id":"CVE-2009-0133","description":"Buffer overflow in Microsoft HTML Help Workshop 4.74 and earlier allows context-dependent attackers to execute arbitrary code via a .hhp file with a long \"Index file\" field, possibly a related issue to CVE-2006-0564.","status":"published","published":"2009-01-15T17:00:00Z","modified":"2024-08-07T04:24:17.534Z","updated_at":"2026-11-02T14:33:25.896677Z"}],"euvd":[{"id":"EUVD-2009-0142","description":"Buffer overflow in Microsoft HTML Help Workshop 4.74 and earlier allows context-dependent attackers to execute arbitrary code via a .hhp file with a long \"Index file\" field, possibly a related issue to CVE-2006-0564.","status":"published","published":"2009-01-15T17:00:00Z","modified":"2024-08-07T04:24:17Z","updated_at":"2026-11-03T01:39:27.128816Z"}],"ghsa":[{"id":"GHSA-fpp9-rfqj-mpm6","title":"Buffer overflow in Microsoft HTML Help Workshop 4.74 and earlier allows context-dependent...","description":"Buffer overflow in Microsoft HTML Help Workshop 4.74 and earlier allows context-dependent attackers to execute arbitrary code via a .hhp file with a long \"Index file\" field, possibly a related issue to CVE-2006-0564.","status":"published","published":"2022-05-02T03:12:56Z","modified":"2023-01-31T05:07:46Z","cwes":["CWE-119"],"updated_at":"2026-11-02T14:49:16.50772Z"}],"nvd":[{"id":"CVE-2009-0133","description":"Buffer overflow in Microsoft HTML Help Workshop 4.74 and earlier allows context-dependent attackers to execute arbitrary code via a .hhp file with a long \"Index file\" field, possibly a related issue to CVE-2006-0564.","status":"published","published":"2009-01-15T17:30:00.703Z","modified":"2026-06-16T23:04:19.4Z","cvss":[{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:01:33.417327Z"}]}}