{"id":"CVE-2000-0258","aliases":["EUVD-2000-0257","GHSA-f3v5-8j87-jjrf"],"status":"published","title":"IIS 4.0 and 5.0 allows remote attackers to cause a denial of service by sending many URLs with a...","description":"IIS 4.0 and 5.0 allows remote attackers to cause a denial of service by sending many URLs with a large number of escaped characters, aka the \"Myriad Escaped Characters\" Vulnerability.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.19456,"percentile":0.97387,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2000-04-12T04:00:00Z","modified":"2026-06-16T21:51:20Z","products":[{"vendor":"microsoft","product":"internet_information_server"},{"vendor":"microsoft","product":"internet_information_services"}],"references":[{"url":"http://www.securityfocus.com/bid/1101","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-023","tags":["vendor-advisory","x_refsource_MS","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2000-0258"},{"url":"https://github.com/advisories/GHSA-f3v5-8j87-jjrf"}],"sources":{"cve":[{"id":"CVE-2000-0258","description":"IIS 4.0 and 5.0 allows remote attackers to cause a denial of service by sending many URLs with a large number of escaped characters, aka the \"Myriad Escaped Characters\" Vulnerability.","status":"published","published":"2000-06-02T04:00:00Z","modified":"2024-08-08T05:14:20.46Z","updated_at":"2026-11-02T14:33:41.23606Z"}],"euvd":[{"id":"EUVD-2000-0257","description":"IIS 4.0 and 5.0 allows remote attackers to cause a denial of service by sending many URLs with a large number of escaped characters, aka the \"Myriad Escaped Characters\" Vulnerability.","status":"published","published":"2000-06-02T04:00:00Z","modified":"2024-08-08T05:14:20Z","updated_at":"2026-11-03T00:56:25.912654Z"}],"ghsa":[{"id":"GHSA-f3v5-8j87-jjrf","title":"IIS 4.0 and 5.0 allows remote attackers to cause a denial of service by sending many URLs with a...","description":"IIS 4.0 and 5.0 allows remote attackers to cause a denial of service by sending many URLs with a large number of escaped characters, aka the \"Myriad Escaped Characters\" Vulnerability.","status":"published","published":"2022-04-30T18:13:17Z","modified":"2023-01-30T05:04:31Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:47:04.089519Z"}],"nvd":[{"id":"CVE-2000-0258","description":"IIS 4.0 and 5.0 allows remote attackers to cause a denial of service by sending many URLs with a large number of escaped characters, aka the \"Myriad Escaped Characters\" Vulnerability.","status":"published","published":"2000-04-12T04:00:00Z","modified":"2026-06-16T21:51:20.377Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T13:58:51.654586Z"}]}}