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CVE-1999-1233
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.
Published: Dec 31, 1999
Modified: Apr 16, 2026
CVSS Metrics
Affected Products (1)
| Vendor | Product | Version |
|---|---|---|
| microsoft | internet_information_server | 4.0 |
GitHub Security Advisory GHSA-53c2-2qjx-38qh
IIS 4.0 does not properly restrict access for the initial session request from a user's IP...
References (8)
- http://support.microsoft.com/support/kb/articles/Q241/5/62.asp Patch, Vendor Advisory
- http://www.securityfocus.com/bid/657 Exploit, Patch, Vendor Advisory
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-039
- https://exchange.xforce.ibmcloud.com/vulnerabilities/3306
- http://support.microsoft.com/support/kb/articles/Q241/5/62.asp Patch, Vendor Advisory
- http://www.securityfocus.com/bid/657 Exploit, Patch, Vendor Advisory
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-039
- https://exchange.xforce.ibmcloud.com/vulnerabilities/3306
Risk Scores
CVSS Score
7.5 / 10
EPSS Score
10.31%
Top 7% most likely to be exploited
Threat Score
33.1 / 100
Data Sources
NVD
EPSS
GitHub