cve-2026-69637

CVE-2026-69637 is an Important-rated Windows DHCP Server denial-of-service vulnerability that Microsoft published on September 24, 2026. It affects Windows Server 2012 through Windows Server 2025, plus certain Windows 10 1607 and 1809 installations running the DHCP Server component. The fix arrives through version-specific cumulative updates, so administrators should treat the listed fixed build numbers as deployment and compliance targets for systems providing DHCP. With a CVSS base score of 5.7 and a temporal score of 5.0, this tag collects coverage of the advisory, affected builds, and patching guidance for the flaw.