CVE-2021-38666 Remote Desktop Client Remote Code Execution Vulnerability
An attacker can execute arbitrary code on a victim's machine by exploiting a vulnerability in the Windows Remote Desktop Client.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-38666?
CVE-2021-38666 is a high-severity code injection vulnerability in Microsoft Windows 10, published on 10 Nov 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Remote Desktop Client Remote Code Execution Vulnerability
Which versions are affected by CVE-2021-38666?
It affects 10 products.
Products include Microsoft Windows 10, Microsoft Windows 11, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Rt 8.1, Microsoft Windows Server 2008 and 4 more.
How do I fix CVE-2021-38666?
No fix has been published for CVE-2021-38666 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2021-38666 being exploited?
There is no known exploitation of CVE-2021-38666 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
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-vcc7-rh26-62x2.