CVE-2023-36743 Win32k Elevation of Privilege Vulnerability
An attacker can exploit a use-after-free flaw in Win32k 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-2023-36743?
CVE-2023-36743 is a high-severity use after free vulnerability in Microsoft Windows 10 1507, published on 10 Oct 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Win32k Elevation of Privilege Vulnerability
Weakness: CWE-416
Which versions are affected by CVE-2023-36743?
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-2023-36743?
No fix has been published for CVE-2023-36743 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2023-36743 being exploited?
There is no known exploitation of CVE-2023-36743 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-5845-35rx-r9pr.