CVE-1999-1537: IIS 3.x and 4.x does not distinguish between pages requiring encryption and those that do not, which allows remote attac

Published n/a Updated 2026-08-21T04:30:47.823Z

Summary

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

UNKNOWN

Source Attribution

Source: NVD · Updated: 2026-08-21T04:30:47.823Z · Confidence: high

Impact

Based on CVSS vector: n/a — assess confidentiality, integrity, and availability impact via the official vector documentation.

Affected Software

Fix

Upgrade affected software to the fixed version identified above. Apply vendor patches and monitor advisories before exposed systems go unpatched.

References