{"id":"CVE-1999-1537","aliases":["EUVD-1999-1518","GHSA-54rf-m93w-vh4v"],"status":"published","title":"IIS 3.x and 4.x does not distinguish between pages requiring encryption and those that do not,...","description":"IIS 3.x and 4.x does not distinguish between pages requiring encryption and those that do not, which allows remote attackers to cause a denial of service (resource exhaustion) via SSL requests to the HTTPS port for normally unencrypted files, which will cause IIS to perform extra work to send the files over SSL.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.08525,"percentile":0.95086,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"1999-07-07T04:00:00Z","modified":"2026-06-16T21:50:39Z","products":[{"vendor":"microsoft","product":"internet_information_server"}],"references":[{"url":"http://marc.info/?l=ntbugtraq\u0026m=93138827329577\u0026w=2","tags":["mailing-list","x_refsource_NTBUGTRAQ","x_transferred"]},{"url":"http://www.securityfocus.com/bid/521","tags":["vdb-entry","x_refsource_BID","x_transferred","Patch","Vendor Advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/2352","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-1999-1537"},{"url":"https://github.com/advisories/GHSA-54rf-m93w-vh4v"}],"sources":{"cve":[{"id":"CVE-1999-1537","description":"IIS 3.x and 4.x does not distinguish between pages requiring encryption and those that do not, which allows remote attackers to cause a denial of service (resource exhaustion) via SSL requests to the HTTPS port for normally unencrypted files, which will cause IIS to perform extra work to send the files over SSL.","status":"published","published":"2004-09-01T04:00:00Z","modified":"2024-08-01T17:18:07.529Z","updated_at":"2026-11-02T14:33:53.295018Z"}],"euvd":[{"id":"EUVD-1999-1518","description":"IIS 3.x and 4.x does not distinguish between pages requiring encryption and those that do not, which allows remote attackers to cause a denial of service (resource exhaustion) via SSL requests to the HTTPS port for normally unencrypted files, which will cause IIS to perform extra work to send the files over SSL.","status":"published","published":"2004-09-01T04:00:00Z","modified":"2024-08-01T17:18:07Z","updated_at":"2026-11-03T03:50:41.965248Z"}],"ghsa":[{"id":"GHSA-54rf-m93w-vh4v","title":"IIS 3.x and 4.x does not distinguish between pages requiring encryption and those that do not,...","description":"IIS 3.x and 4.x does not distinguish between pages requiring encryption and those that do not, which allows remote attackers to cause a denial of service (resource exhaustion) via SSL requests to the HTTPS port for normally unencrypted files, which will cause IIS to perform extra work to send the files over SSL.","status":"published","published":"2022-04-30T18:12:39Z","modified":"2023-01-30T05:04:48Z","updated_at":"2026-11-02T14:47:07.803331Z"}],"nvd":[{"id":"CVE-1999-1537","description":"IIS 3.x and 4.x does not distinguish between pages requiring encryption and those that do not, which allows remote attackers to cause a denial of service (resource exhaustion) via SSL requests to the HTTPS port for normally unencrypted files, which will cause IIS to perform extra work to send the files over SSL.","status":"published","published":"1999-07-07T04:00:00Z","modified":"2026-06-16T21:50:39.457Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T13:58:40.923898Z"}]}}