Windows Kernel Denial of Service Vulnerability

MonitorCVSS 6.5CVE-2026-70170Oct 13, 2026
Microsoft
IT in OT - Windows Server and Active Directory are widely deployed in OT environments
Attack path
Attack VectorNetwork
Auth RequiredLow
ComplexityLow
User InteractionNone needed
Summary

Untrusted pointer dereference in Windows Kernel allows an authorized attacker to deny service over a network.

What this means
What could happen
Could disrupt device operations or cause loss of view/control
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 with basic access credentials. The attack is straightforward with no special conditions
Exploitability
Some exploitation risk — EPSS score 1.1%
Affected products (28)
28 with fix
ProductAffected VersionsFix Status
Windows 11 Version 26H2 for ARM64-based SystemsAll versionsBuild 10.0.26300.9711
Windows 11 Version 26H2 for x64-based SystemsAll versionsBuild 10.0.26300.9711
Windows 10 Version 1809 for 32-bit SystemsAll versionsBuild 10.0.17763.9376
Windows 10 Version 1809 for x64-based SystemsAll versionsBuild 10.0.17763.9376
Windows Server 2019All versionsBuild 10.0.17763.9376
Remediation & Mitigation
0/1
Long-term hardening
0/1
Exploitation assessment: Exploitation Less Likely. Apply the 2026-Oct security update.
API: /api/v1/advisories/65774f20-5c78-46f9-8478-21be32e09c98

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Windows Kernel Denial of Service Vulnerability | CVSS 6.5 - OTPulse