CVE-1999-1591

2007-07-0519:00:00

mitre

www.cve.org

microsoft

iis

authentication

AI Score

Confidence

Low

EPSS

0.026

Percentile

90.5%

JSON

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.