CVE-2023-21539 Windows Authentication Remote Code Execution Vulnerability
An attacker can execute arbitrary code on Windows systems via a memory corruption flaw in the authentication component.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-21539?
CVE-2023-21539 is a high-severity memory corruption vulnerability in Microsoft Windows 10 20h2, published on 10 Jan 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Windows Authentication Remote Code Execution Vulnerability
Weakness: CWE-125
Which versions are affected by CVE-2023-21539?
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-2023-21539?
No fix has been published for CVE-2023-21539 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2023-21539 being exploited?
There is no known exploitation of CVE-2023-21539 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-2023-21724 Microsoft DWM Core Library Elevation of Privilege 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-vjf5-w6w5-295q.