CVE-2021-34444

MediumCVSS 6.5

Published: 16/07/2021(UTC)Updated: 10/08/2026(UTC)Translated: 10/08/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

High risk

3.00%

86th percentile - higher than 86% of all known CVEs

Summary

Denial of Service (DoS) vulnerability in Windows DNS Server. An attacker could exploit this flaw to cause the DNS service to crash, preventing name resolution.

Risk Assessment

Risk of disruption of DNS services, potentially leading to unavailability of applications and services dependent on name resolution.

Recommendation

Install Windows security updates that fix this vulnerability.

Original NVD description (English source)

Windows DNS Server Denial of Service Vulnerability