Rewterz Threat Advisory – CVE-2020-0993 – Windows DNS Denial of Service Vulnerability

Severity

Medium

Analysis Summary

A denial of service vulnerability exists in Windows DNS when it fails to properly handle queries. An attacker who successfully exploited this vulnerability could cause the DNS service to become nonresponsive.

To exploit the vulnerability, an authenticated attacker could send malicious DNS queries to a target, resulting in a denial of service.

Impact

Denial of service

Affected Vendors

Microsoft

Remediation

Patched versions are available. Update to latest version

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0993