CVE-2023-21820 Windows Distributed File System (DFS) Remote Code Execution Vulnerability
An attacker can execute arbitrary code on Windows systems via the Distributed File System component.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2023-21820?
CVE-2023-21820 is a high-severity memory corruption vulnerability in Microsoft Windows 10, published on 14 Feb 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Windows Distributed File System (DFS) Remote Code Execution Vulnerability
Weakness: CWE-126
Which versions are affected by CVE-2023-21820?
It affects 13 products.
Products include Microsoft Windows 10, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 20h2, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2 and 7 more.
How do I fix CVE-2023-21820?
No fix has been published for CVE-2023-21820 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-2023-21820 being exploited?
There is no known exploitation of CVE-2023-21820 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows 10
- CVE-2015-2426 Microsoft Windows Adobe Type Manager Library Remote Code Execution
- CVE-2015-1769 Microsoft Windows Mount Manager Privilege Escalation
- CVE-2020-1467 Windows Hard Link Elevation of Privilege Vulnerability
- CVE-2021-26424 Windows TCP/IP Remote Code Execution Vulnerability
- CVE-2021-28476 Windows Hyper-V Remote Code Execution Vulnerability
Sources
Also known as GHSA-xgr9-7593-ff2p.