{"cve":"CVE-1999-1223","nvd":{"published":"1999-12-31T05:00:00.000","modified":"2026-06-16T21:49:58.883","status":"Modified","description":"IIS 3.0 allows remote attackers to cause a denial of service via a request to an ASP page in which the URL contains a large number of / (forward slash) characters.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://support.microsoft.com/support/kb/articles/q187/5/03.asp","https://exchange.xforce.ibmcloud.com/vulnerabilities/3892","http://support.microsoft.com/support/kb/articles/q187/5/03.asp","https://exchange.xforce.ibmcloud.com/vulnerabilities/3892"],"products":["microsoft:internet_information_server"],"source":"nvd","synced_at":"2026-10-19T19:33:01.030757803+00:00"},"epss":{"cve":"CVE-1999-1223","score":0.23055,"percentile":0.97758,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}