Vulnerability in Microsoft Internet Information Server

CVE-1999-1591

Microsoft Internet Information Services (IIS) server 4.0 SP4, without certain hotfixes released for SP4, does not require authentication credentials under certain conditions, which allows remote attackers to bypass authentication requirements, as demonstrated by connecting via Microsoft Visual InterDev 6.0.

EPSS: 0.113 (95.5th percentile) — read the EPSS interpretation.

Affected products

References