CVE-2021-38665 Remote Desktop Protocol Client Information Disclosure Vulnerability

High 7.4 Published 10 Nov 2021 Updated 19 Aug 2026

An attacker can exploit the Remote Desktop Protocol Client to disclose sensitive information to unauthorized users.

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-2021-38665?

CVE-2021-38665 is a high-severity 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 Protocol Client Information Disclosure Vulnerability

Which versions are affected by CVE-2021-38665?

It affects 11 products.

Products include Microsoft Remote Desktop Client, Microsoft Windows 10, Microsoft Windows 11, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Rt 8.1 and 5 more.

How do I fix CVE-2021-38665?

No fix has been published for CVE-2021-38665 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-38665 being exploited?

There is no known exploitation of CVE-2021-38665 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-6483-ch6v-gp2h.