A memory corruption vulnerability exists in the Windows Server DHCP service when an attacker sends specially crafted packets to a DHCP server. An attacker who successfully exploited the vulnerability could run arbitrary code on the DHCP server.
To exploit the vulnerability, an attacker could send a specially crafted packet to a DHCP server.
The security update addresses the vulnerability by correcting how DHCP servers handle network packets.
Severity
CVSS 3.1
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
4.2% chance of exploitation in the next 30 days; higher than 91% of CVEs (scores of 2026-10-31)