{"id":"CVE-2006-0564","aliases":["EUVD-2006-0571","GHSA-937c-j3f9-3p46"],"status":"published","title":"Stack-based buffer overflow in Microsoft HTML Help Workshop 4.74.8702.0, and possibly earlier...","description":"Stack-based buffer overflow in Microsoft HTML Help Workshop 4.74.8702.0, and possibly earlier versions, and as included in the Microsoft HTML Help 1.4 SDK, allows context-dependent attackers to execute arbitrary code via a .hhp file with a long Contents file field.","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":"2026-11-09","score":0.71697,"percentile":0.99425,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"published":"2006-02-06T23:00:00Z","modified":"2026-06-16T22:20:51Z","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-16648","title":"Microsoft HTML Help Workshop 4.74 - '.hhp' Cotent Buffer Overflow (Metasploit) (2)","type":"local","platform":"windows","date":"2010-09-25","verified":true,"url":"https://www.exploit-db.com/exploits/16648"},{"source":"exploitdb","id":"EDB-16683","title":"Microsoft HTML Help Workshop 4.74 - '.hhp' compiled Buffer Overflow (Metasploit) (4)","type":"local","platform":"windows","date":"2010-09-25","verified":true,"url":"https://www.exploit-db.com/exploits/16683"},{"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_compiledfile_bof","title":"HTML Help Workshop 4.74 (hhp Project File) Buffer Overflow","type":"exploit","platform":"Windows","date":"2006-02-06","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/windows/fileformat/hhw_hhp_compiledfile_bof"},{"source":"metasploit","id":"exploit/windows/fileformat/hhw_hhp_contentfile_bof","title":"HTML Help Workshop 4.74 (hhp Project File) Buffer Overflow","type":"exploit","platform":"Windows","date":"2006-02-06","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/windows/fileformat/hhw_hhp_contentfile_bof"}],"products":[{"vendor":"microsoft","product":"html_help"},{"vendor":"microsoft","product":"html_help_workshop"}],"references":[{"url":"http://secunia.com/advisories/18740","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"http://www.osvdb.org/22941","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"http://securitytracker.com/id?1015585","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/24481","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://users.pandora.be/bratax/advisories/b008.html","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://www.kb.cert.org/vuls/id/124460","tags":["third-party-advisory","x_refsource_CERT-VN","x_transferred","US Government Resource"]},{"url":"http://www.vupen.com/english/advisories/2006/0446","tags":["vdb-entry","x_refsource_VUPEN","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2006-0564"},{"url":"https://github.com/advisories/GHSA-937c-j3f9-3p46"}],"sources":{"cve":[{"id":"CVE-2006-0564","description":"Stack-based buffer overflow in Microsoft HTML Help Workshop 4.74.8702.0, and possibly earlier versions, and as included in the Microsoft HTML Help 1.4 SDK, allows context-dependent attackers to execute arbitrary code via a .hhp file with a long Contents file field.","status":"published","published":"2006-02-06T23:00:00Z","modified":"2024-08-07T16:41:28.381Z","updated_at":"2026-11-02T14:33:52.947472Z"}],"euvd":[{"id":"EUVD-2006-0571","description":"Stack-based buffer overflow in Microsoft HTML Help Workshop 4.74.8702.0, and possibly earlier versions, and as included in the Microsoft HTML Help 1.4 SDK, allows context-dependent attackers to execute arbitrary code via a .hhp file with a long Contents file field.","status":"published","published":"2006-02-06T23:00:00Z","modified":"2024-08-07T16:41:28Z","updated_at":"2026-11-03T01:16:08.950803Z"}],"ghsa":[{"id":"GHSA-937c-j3f9-3p46","title":"Stack-based buffer overflow in Microsoft HTML Help Workshop 4.74.8702.0, and possibly earlier...","description":"Stack-based buffer overflow in Microsoft HTML Help Workshop 4.74.8702.0, and possibly earlier versions, and as included in the Microsoft HTML Help 1.4 SDK, allows context-dependent attackers to execute arbitrary code via a .hhp file with a long Contents file field.","status":"published","published":"2022-05-01T06:40:55Z","modified":"2023-01-31T05:00:35Z","updated_at":"2026-11-02T14:47:53.384122Z"}],"nvd":[{"id":"CVE-2006-0564","description":"Stack-based buffer overflow in Microsoft HTML Help Workshop 4.74.8702.0, and possibly earlier versions, and as included in the Microsoft HTML Help 1.4 SDK, allows context-dependent attackers to execute arbitrary code via a .hhp file with a long Contents file field.","status":"published","published":"2006-02-06T23:02:00Z","modified":"2026-06-16T22:20:51.097Z","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":"2026-11-02T14:01:00.269596Z"}]}}