CVE-2021-44425

An issue was discovered in AnyDesk before 6.2.6 and 6.3.x before 6.3.3. An unnecessarily open listening port on a machine in the LAN of an attacker, opened by the Anydesk Windows client when using the tunneling feature, allows the attacker unauthorized access to the local machine's AnyDesk tunneling protocol stack (and also to any remote destination machine software that is listening to the AnyDesk tunneled port).

• https://anydesk.com/en/downloads/windowsProduct, Vendor Advisory
• https://argus-sec.com/discovering-tunneling-service-security-flaws-in-anydesk-remote-application/Exploit, Third Party Advisory
• https://anydesk.com/en/downloads/windowsProduct, Vendor Advisory
• https://argus-sec.com/discovering-tunneling-service-security-flaws-in-anydesk-remote-application/Exploit, Third Party Advisory

Published

Sep 12, 2022

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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