CVE-2023-35340 Windows CNG Key Isolation Service Elevation of Privilege Vulnerability
An attacker can exploit the Windows CNG Key Isolation Service to gain elevated privileges on affected Windows systems.
- 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-2023-35340?
CVE-2023-35340 is a high-severity vulnerability in Microsoft Windows 10 1507, published on 11 Jul 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Windows CNG Key Isolation Service Elevation of Privilege Vulnerability
Weakness: CWE-591
Which versions are affected by CVE-2023-35340?
It affects 12 products.
Products include Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 21h2 and 6 more.
How do I fix CVE-2023-35340?
No fix has been published for CVE-2023-35340 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-35340 being exploited?
There is no known exploitation of CVE-2023-35340 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows 10 1507
- CVE-2017-8543 Microsoft Windows Search Remote Code Execution
- CVE-2025-33053 Microsoft Windows External Control of File Name or Path
- CVE-2025-33073 Microsoft Windows SMB Client Improper Access Control
- CVE-2024-49039 Microsoft Windows Task Scheduler Privilege Escalation
- CVE-2024-43461 Microsoft Windows MSHTML Platform Spoofing
Sources
Also known as GHSA-h2p6-vc37-qj4h.