What’s Vulnerable › Vulnerabilities

CVE-1999-1222

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 5.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2002-03-09 · updated 2026-06-16

Description

Netbt.sys in Windows NT 4.0 allows remote malicious DNS servers to cause a denial of service (crash) by returning 0.0.0.0 as the IP address for a DNS host name lookup.

Affected products

• Microsoft Windows Nt: 4.0

References

• http://support.microsoft.com/support/kb/articles/Q188/5/71.ASP
• https://exchange.xforce.ibmcloud.com/vulnerabilities/3893
• http://support.microsoft.com/support/kb/articles/Q188/5/71.ASP
• https://exchange.xforce.ibmcloud.com/vulnerabilities/3893

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