CVE-2026-70299

Windows Bind Filter Driver Elevation of Privilege Vulnerability

CVE-2026-70299 is fixed in 4 products on 1 platform, first by KB5126653, released October 13, 2026. It is not reported as exploited. Patch Radar priority: High.

High

CVSS

8.8

Important

Exploitation

None reported

Exploitation Less Likely

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0034

27th percentile

<p>Improper access control in Windows Bind Filter Driver allows an authorized attacker to elevate privileges locally.</p>

Where it's fixed

Product	Fixed in	Fix	Released
Microsoft
Windows 11 Version 23H2 for ARM64-based Systems	22631.7652	KB5126653	Oct 13, 2026
Windows 11 Version 23H2 for x64-based Systems	22631.7652	KB5126653	Oct 13, 2026
Windows Server 2025	26100.33650	KB5126646	Oct 13, 2026
Windows Server 2025 (Server Core installation)	26100.33650	KB5126646	Oct 13, 2026

Details

Published
October 13, 2026
Weakness
Incorrect Authorization
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70299

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