{"id":"CVE-1999-0874","aliases":["EUVD-1999-0855","GHSA-5c7g-wprj-cxg3"],"status":"published","title":"Buffer overflow in IIS 4.0 allows remote attackers to cause a denial of service via a malformed...","description":"Buffer overflow in IIS 4.0 allows remote attackers to cause a denial of service via a malformed request for files with .HTR, .IDC, or .STM extensions.","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":0.74651,"percentile":0.99503,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-119"],"published":"1999-06-16T04:00:00Z","modified":"2026-06-16T21:49:14Z","exploits":[{"source":"exploitdb","id":"EDB-16468","title":"Microsoft IIS 4.0 - '.htr' Path Overflow (MS02-018) (Metasploit)","type":"remote","platform":"windows","date":"2010-04-30","verified":true,"url":"https://www.exploit-db.com/exploits/16468"},{"source":"exploitdb","id":"EDB-19245","title":"Microsoft IIS 4.0 - Remote Buffer Overflow (1)","type":"remote","platform":"windows","date":"1999-06-15","verified":true,"url":"https://www.exploit-db.com/exploits/19245"},{"source":"exploitdb","id":"EDB-19246","title":"Microsoft IIS 4.0 - Remote Buffer Overflow (2)","type":"remote","platform":"windows","date":"1999-06-15","verified":true,"url":"https://www.exploit-db.com/exploits/19246"},{"source":"exploitdb","id":"EDB-19247","title":"Microsoft IIS 4.0 - Remote Buffer Overflow (3)","type":"remote","platform":"linux","date":"1999-06-15","verified":true,"url":"https://www.exploit-db.com/exploits/19247"},{"source":"exploitdb","id":"EDB-19248","title":"Microsoft IIS 4.0 - Remote Buffer Overflow (4)","type":"remote","platform":"windows","date":"1999-06-15","verified":true,"url":"https://www.exploit-db.com/exploits/19248"},{"source":"metasploit","id":"exploit/windows/iis/ms02_018_htr","title":"MS02-018 Microsoft IIS 4.0 .HTR Path Overflow","type":"exploit","platform":"Windows","date":"2002-04-10","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/windows/iis/ms02_018_htr"}],"products":[{"vendor":"microsoft","product":"internet_information_server"},{"vendor":"microsoft","product":"windows_2000"},{"vendor":"microsoft","product":"windows_nt"}],"references":[{"url":"http://www.eeye.com/html/Research/Advisories/AD06081999.html","tags":["third-party-advisory","x_refsource_EEYE","x_transferred"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A915","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred"]},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-019","tags":["vendor-advisory","x_refsource_MS","x_transferred"]},{"url":"http://support.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3BQ234905","tags":["vendor-advisory","x_refsource_MSKB","x_transferred"]},{"url":"http://www.ciac.org/ciac/bulletins/j-048.shtml","tags":["third-party-advisory","government-resource","x_refsource_CIAC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-1999-0874"},{"url":"http://support.microsoft.com/default.aspx?scid=kb;[LN];Q234905"},{"url":"https://github.com/advisories/GHSA-5c7g-wprj-cxg3"}],"sources":{"cve":[{"id":"CVE-1999-0874","description":"Buffer overflow in IIS 4.0 allows remote attackers to cause a denial of service via a malformed request for files with .HTR, .IDC, or .STM extensions.","status":"published","published":"2000-06-02T04:00:00Z","modified":"2024-08-01T16:55:29.15Z","updated_at":"2026-11-02T14:33:53.911988Z"}],"euvd":[{"id":"EUVD-1999-0855","description":"Buffer overflow in IIS 4.0 allows remote attackers to cause a denial of service via a malformed request for files with .HTR, .IDC, or .STM extensions.","status":"published","published":"2000-06-02T04:00:00Z","modified":"2024-08-01T16:55:29Z","updated_at":"2026-11-03T03:50:45.175548Z"}],"ghsa":[{"id":"GHSA-5c7g-wprj-cxg3","title":"Buffer overflow in IIS 4.0 allows remote attackers to cause a denial of service via a malformed...","description":"Buffer overflow in IIS 4.0 allows remote attackers to cause a denial of service via a malformed request for files with .HTR, .IDC, or .STM extensions.","status":"published","published":"2022-04-30T18:11:22Z","modified":"2025-04-03T03:34:14Z","cwes":["CWE-119"],"updated_at":"2026-11-02T15:00:36.60124Z"}],"nvd":[{"id":"CVE-1999-0874","description":"Buffer overflow in IIS 4.0 allows remote attackers to cause a denial of service via a malformed request for files with .HTR, .IDC, or .STM extensions.","status":"published","published":"1999-06-16T04:00:00Z","modified":"2026-06-16T21:49:14.25Z","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":"2026-11-02T13:58:40.923898Z"}]}}