What is the severity of CVE-2021-44426?

The severity of CVE-2021-44426 is high with a severity value of 8.8.

How can I exploit CVE-2021-44426?

As a user of the AnyDesk Windows client, an attacker who is connected remotely with AnyDesk can upload an arbitrary file to your local ~/Downloads/ directory.

Which versions of AnyDesk are affected by CVE-2021-44426?

AnyDesk versions before 6.2.6 and 6.3.x before 6.3.5 are affected by CVE-2021-44426.

How do I fix CVE-2021-44426?

To fix CVE-2021-44426, update your AnyDesk Windows client to version 6.2.6 or higher.

Where can I find more information about CVE-2021-44426?

You can find more information about CVE-2021-44426 in the references provided: [1](https://anydesk.com/en/downloads/windows) and [2](https://argus-sec.com/discovering-tunneling-service-security-flaws-in-anydesk-remote-application/).

Vulnerability/
CVE-2021-44426

high

8.8

CWE

434

12/9/2022

4/8/2024

CVE-2021-44426: Malicious File Upload

First published: Mon Sep 12 2022(Updated: )

An issue was discovered in AnyDesk before 6.2.6 and 6.3.x before 6.3.5. An upload of an arbitrary file to a victim's local ~/Downloads/ directory is possible if the victim is using the AnyDesk Windows client to connect to a remote machine, if an attacker is also connected remotely with AnyDesk to the same remote machine. The upload is done without any approval or action taken by the victim.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
AnyDesk AnyDesk	<6.2.6
AnyDesk AnyDesk	>=6.3.0<6.3.3

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2021-44426?
The severity of CVE-2021-44426 is high with a severity value of 8.8.
How can I exploit CVE-2021-44426?
As a user of the AnyDesk Windows client, an attacker who is connected remotely with AnyDesk can upload an arbitrary file to your local ~/Downloads/ directory.
Which versions of AnyDesk are affected by CVE-2021-44426?
AnyDesk versions before 6.2.6 and 6.3.x before 6.3.5 are affected by CVE-2021-44426.
How do I fix CVE-2021-44426?
To fix CVE-2021-44426, update your AnyDesk Windows client to version 6.2.6 or higher.
Where can I find more information about CVE-2021-44426?
You can find more information about CVE-2021-44426 in the references provided: [1](https://anydesk.com/en/downloads/windows) and [2](https://argus-sec.com/discovering-tunneling-service-security-flaws-in-anydesk-remote-application/).

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version/anydesk anydesk/6.3.0

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