Windows DHCP Server Remote Code Execution Vulnerability
Plan PatchCVSS 8.1CVE-2026-88117Oct 13, 2026
Microsoft
IT in OT - Windows Server and Active Directory are widely deployed in OT environments
Attack path
Attack VectorNetwork
Auth RequiredNone
ComplexityHigh
User InteractionNone needed
Summary
Use after free in Windows DHCP Server allows an unauthorized attacker to execute code over a network.
What this means
What could happen
Could allow full system compromise — read data, modify settings, and disrupt operations
Who's at risk
Organizations in critical infrastructure using Microsoft equipment
How it could be exploited
Attacker on the corporate network or internet could reach this device without any credentials
Exploitability
Unlikely to be exploited — EPSS score 0.5%
Affected products (8)
8 with fix
ProductAffected VersionsFix Status
Remediation & Mitigation
0/1
Long-term hardening
0/1Exploitation assessment: Exploitation Less Likely. Apply the 2026-Oct security update.
CVEs (1)
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