CVE DATABASE / CVE-2000-1218
CVE-2000-1218
CVSS 9.8 · CRITICAL
Summary
The default configuration for the domain name resolver for Microsoft Windows 98, NT 4.0, 2000, and XP sets the QueryIpMatching parameter to 0, which causes Windows to accept DNS updates from hosts that it did not query, which allows remote attackers to poison the DNS cache.
CVSS 3.1 breakdown
| Base score | 9.8 (CRITICAL) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| Attack vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity | HIGH |
| Availability | HIGH |
Weakness type (CWE)
Affected products
Microsoft windows 2000Microsoft windows 98Microsoft windows 98seMicrosoft windows ntMicrosoft windows xp
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References
Data: NIST NVD. NVD last modified 2026-04-16. Always verify against the vendor advisory before acting.