Unrated severityNVD Advisory· Published Dec 31, 1999· Updated Jun 16, 2026
CVE-1999-1233
CVE-1999-1233
Description
IIS 4.0 does not properly restrict access for the initial session request from a user's IP address if the address does not resolve to a DNS domain, aka the "Domain Resolution" vulnerability.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- cpe:2.3:a:microsoft:internet_information_server:4.0:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
4- support.microsoft.com/support/kb/articles/Q241/5/62.aspnvdPatchVendor Advisory
- www.securityfocus.com/bid/657nvdExploitPatchVendor Advisory
- docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-039nvd
- exchange.xforce.ibmcloud.com/vulnerabilities/3306nvd
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