{"id":"CVE-2001-0004","aliases":["EUVD-2001-0004","GHSA-mr3v-pmm4-26v3"],"status":"published","title":"IIS 5.0 and 4.0 allows remote attackers to read the source code for executable web server...","description":"IIS 5.0 and 4.0 allows remote attackers to read the source code for executable web server programs by appending \"%3F+.htr\" to the requested URL, which causes the files to be parsed by the .HTR ISAPI extension, aka a variant of the \"File Fragment Reading via .HTR\" vulnerability.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.28215,"percentile":0.98126,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2001-02-12T05:00:00Z","modified":"2026-06-16T21:53:28Z","products":[{"vendor":"microsoft","product":"internet_information_server"},{"vendor":"microsoft","product":"internet_information_services"}],"references":[{"url":"http://www.securityfocus.com/bid/2313","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/5903","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-004","tags":["vendor-advisory","x_refsource_MS","x_transferred"]},{"url":"http://marc.info/?l=bugtraq\u0026m=97897954625305\u0026w=2","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2001-0004"},{"url":"https://github.com/advisories/GHSA-mr3v-pmm4-26v3"}],"sources":{"cve":[{"id":"CVE-2001-0004","description":"IIS 5.0 and 4.0 allows remote attackers to read the source code for executable web server programs by appending \"%3F+.htr\" to the requested URL, which causes the files to be parsed by the .HTR ISAPI extension, aka a variant of the \"File Fragment Reading via .HTR\" vulnerability.","status":"published","published":"2001-09-18T04:00:00Z","modified":"2024-08-08T04:06:55.127Z","updated_at":"2026-11-02T14:34:43.358691Z"}],"euvd":[{"id":"EUVD-2001-0004","description":"IIS 5.0 and 4.0 allows remote attackers to read the source code for executable web server programs by appending \"%3F+.htr\" to the requested URL, which causes the files to be parsed by the .HTR ISAPI extension, aka a variant of the \"File Fragment Reading via .HTR\" vulnerability.","status":"published","published":"2001-09-18T04:00:00Z","modified":"2024-08-08T04:06:55Z","updated_at":"2026-11-03T01:14:53.392551Z"}],"ghsa":[{"id":"GHSA-mr3v-pmm4-26v3","title":"IIS 5.0 and 4.0 allows remote attackers to read the source code for executable web server...","description":"IIS 5.0 and 4.0 allows remote attackers to read the source code for executable web server programs by appending \"%3F+.htr\" to the requested URL, which causes the files to be parsed by the .HTR ISAPI extension, aka a variant of the \"File Fragment Reading via .HTR\" vulnerability.","status":"published","published":"2022-04-30T18:15:13Z","modified":"2023-01-30T05:05:20Z","updated_at":"2026-11-02T14:47:14.859967Z"}],"nvd":[{"id":"CVE-2001-0004","description":"IIS 5.0 and 4.0 allows remote attackers to read the source code for executable web server programs by appending \"%3F+.htr\" to the requested URL, which causes the files to be parsed by the .HTR ISAPI extension, aka a variant of the \"File Fragment Reading via .HTR\" vulnerability.","status":"published","published":"2001-02-12T05:00:00Z","modified":"2026-06-16T21:53:28.34Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:00:39.593487Z"}]}}