CVE-2026-49169: Windows DNS Server Remote Code Execution Vulnerability

Overview

Severity

High (CVSS 8)

CVSS Vector

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

Category

Remote Code Execution

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2026-Jul

Released

2026-07-14

Description

Use after free in DNS Server allows an authorized attacker to execute code over a network.

Affected Products (2)

Windows

• Windows Server 2025 (Server Core installation)
• Windows Server 2025

Security Updates (1)

• 5099536

Acknowledgments

pwnky

Revision History

• 2026-07-14: Information published.