CVE-2026-103578 Windows Kernel Elevation of Privilege Vulnerability
An attacker with physical access can exploit a kernel pointer dereference flaw to elevate privileges on Windows systems.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-103578?
CVE-2026-103578 is a medium-severity vulnerability in Microsoft Windows 11 26h1, 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
Untrusted pointer dereference in Windows Kernel allows an unauthorized attacker to elevate privileges with a physical attack.
Weakness: CWE-822
Which versions are affected by CVE-2026-103578?
It affects 1 product.
Products include Microsoft Windows 11 26h1.
How do I fix CVE-2026-103578?
No fix has been published for CVE-2026-103578 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-103578 being exploited?
There is no known exploitation of CVE-2026-103578 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows 11 26h1
- CVE-2026-85921 Windows Secure Kernel Mode Elevation of Privilege Vulnerability
- CVE-2026-83939 Windows Secure Kernel Mode Elevation of Privilege Vulnerability
- CVE-2026-105005 Windows Schannel Remote Code Execution Vulnerability
- CVE-2026-85850 Windows Kernel Elevation of Privilege Vulnerability
- CVE-2026-97803 Windows Kernel Elevation of Privilege Vulnerability
Sources
Also known as GHSA-9v64-63h6-2f9m.