CVE-1999-1591 describes an authentication bypass vulnerability in Microsoft Internet Information Services (IIS) 4.0 SP4, specifically when certain hotfixes are not applied. This flaw allows remote attackers to bypass authentication requirements, as demonstrated by connections made via Microsoft Visual InterDev 6.0. With a CVSS score of 7.5 (HIGH), this vulnerability is easily exploitable over the network with low attack complexity, potentially leading to partial compromise of confidentiality, integrity, and availability. Despite its age and severity, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
4.0CPE matchmatch criteria | cpe:2.3:a:microsoft:internet_information_server:4.0:sp4:*:*:*:*:*:* | ||
6.0CPE matchmatch criteria | cpe:2.3:a:microsoft:visual_interdev:6.0:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:P/I:P/A:P
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.