Windows Kernel Elevation of Privilege Vulnerability

Plan PatchCVSS 8.8CVE-2026-96913Oct 13, 2026
Microsoft
IT in OT - Windows Server and Active Directory are widely deployed in OT environments
Attack path
Attack VectorLocal
Auth RequiredLow
ComplexityLow
User InteractionNone needed
Summary

Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.

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 would need local or console access to the device with basic access credentials. The attack is straightforward with no special conditions
Exploitability
Unlikely to be exploited - EPSS score 0.4%
Affected products (24)
24 with fix
ProductAffected VersionsFix Status
Windows 11 Version 24H2 for ARM64-based SystemsAll versionsBuild 10.0.26100.9711
Windows 11 Version 24H2 for x64-based SystemsAll versionsBuild 10.0.26100.9711
Windows 11 Version 25H2 for ARM64-based SystemsAll versionsBuild 10.0.26200.9711
Windows 11 Version 25H2 for x64-based SystemsAll versionsBuild 10.0.26200.9711
Windows 11 Version 26H2 for ARM64-based SystemsAll versionsBuild 10.0.26300.9711
Remediation & Mitigation
0/1
Long-term hardening
0/1
Exploitation assessment: Exploitation Less Likely. Apply the 2026-Oct security update.
API: /api/v1/advisories/2061c09e-6b65-402f-a07c-204143a9ed5f

Get OTPulse briefings by email

Advisory breakdowns and incident analyses for the people actually defending OT environments. Sent when there's something worth your attention, not on a schedule. Free, no account required.

Windows Kernel Elevation of Privilege Vulnerability | CVSS 8.8 - OTPulse