CVE-2026-49169

Windows DNS Server Remote Code Execution Vulnerability

CVE-2026-49169 is fixed in 2 products on 1 platform, first by KB5099536, released July 14, 2026. It is not reported as exploited. Patch Radar priority: High.

High

CVSS

8.0

Important

Exploitation

None reported

Exploitation Less Likely

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0075

55th percentile

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

Where it's fixed

Product	Fixed in	Fix	Released
Microsoft
Windows Server 2025	26100.33158	KB5099536	Jul 14, 2026
Windows Server 2025 (Server Core installation)	26100.33158	KB5099536	Jul 14, 2026

Details

Published
July 14, 2026
Weakness
Use After Free
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49169

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