CVE-2023-21724 Microsoft DWM Core Library Elevation of Privilege Vulnerability
An attacker can exploit a use-after-free flaw in the Windows DWM Core Library to escalate 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-2023-21724?
CVE-2023-21724 is a high-severity use after free vulnerability in Microsoft Windows 10 20h2, published on 10 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Microsoft DWM Core Library Elevation of Privilege Vulnerability
Weakness: CWE-416
Which versions are affected by CVE-2023-21724?
It affects 6 products.
Products include Microsoft Windows 10 20h2, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 21h2, Microsoft Windows 11 22h2, Microsoft Windows Server 2022.
How do I fix CVE-2023-21724?
No fix has been published for CVE-2023-21724 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-2023-21724 being exploited?
There is no known exploitation of CVE-2023-21724 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows 10 20h2
- CVE-2023-24871 Windows Bluetooth Service Remote Code Execution Vulnerability
- CVE-2023-24905 Remote Desktop Client Remote Code Execution Vulnerability
- CVE-2023-21539 Windows Authentication Remote Code Execution Vulnerability
- CVE-2023-21733 Windows Bind Filter Driver Elevation of Privilege Vulnerability
- CVE-2022-44684 Windows Local Session Manager (LSM) Denial of Service Vulnerability
Sources
Also known as GHSA-cvmr-mvcf-666v.