cvedb.io
CVE-2021-33318
CRITICAL · CVSS 9.8
EPSS exploitation probability: 0%
Published 2022-05-16T16:15:07.810 · Last modified 2026-06-17T03:54:26.300

Summary

An Input Validation Vulnerability exists in Joel Christner .NET C# packages WatsonWebserver, IpMatcher 1.0.4.1 and below (IpMatcher) and 4.1.3 and below (WatsonWebserver) due to insufficient validation of input IP addresses and netmasks against the internal Matcher list of IP addresses and subnets.

Affected products

ipmatcher_project — ipmatcher

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.