CVE-2026-70299 Windows Bind Filter Driver Elevation of Privilege Vulnerability

High 8.8 Published 13 Oct 2026 Updated 29 Oct 2026

An authorized local attacker can elevate privileges due to improper access control in the Windows Bind Filter Driver.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-70299?

CVE-2026-70299 is a high-severity vulnerability in Microsoft Windows 11 23h2, published on 13 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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

Weakness: CWE-863

Which versions are affected by CVE-2026-70299?

It affects 2 products.

Products include Microsoft Windows 11 23h2, Microsoft Windows Server 2025.

How do I fix CVE-2026-70299?

No fix has been published for CVE-2026-70299 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-70299 being exploited?

There is no known exploitation of CVE-2026-70299 in the wild and no public exploit code.

All Microsoft Windows 11 23h2 vulnerabilities

Sources

Also known as GHSA-6rg5-3736-7f2r.