CVE-2026-49174

Microsoft · Published July 14, 2026

6.1

CVSS v3.1

MEDIUM

Patch availableGet patch

Description

DNS Client Tampering Vulnerability. Missing authentication for critical function in Microsoft Windows DNS allows an authorized attacker to perform tampering locally.

Affected Products

Windows 10 Version 1809 for 32-bit Systems
Windows 10 Version 1809 for x64-based Systems
Windows Server 2019
Windows Server 2019 (Server Core installation)

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N/E:U/RL:O/RC:C