Use after free in Windows DHCP Client allows an unauthorized attacker to execute code locally.
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54128
https://www.tenable.com/blog/microsofts-july-2026-patch-tuesday-addresses-569-cves-cve-2026-56155-cve-2026-56164
Source: Mitre, NVD
Published: 2026-07-14
Updated: 2026-07-15
Base Score: 7.2
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
Severity: High
Base Score: 8.4
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H