cvedb.io
CVE-2021-3672
MEDIUM · CVSS 5.6
EPSS exploitation probability: 0%
Published 2021-11-23T19:15:07.877 · Last modified 2026-06-17T04:05:32.540

Summary

A flaw was found in c-ares library, where a missing input validation check of host names returned by DNS (Domain Name Servers) can lead to output of wrong hostnames which might potentially lead to Domain Hijacking. The highest threat from this vulnerability is to confidentiality and integrity as well as system availability.

Affected products

c-ares_project — c-ares

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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.