CVE-2021-44425
mediumpriority · track · 26EPSS 0.006 · 48 %ileEUUSEPSS · scored 2026-10-28
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).
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (3)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://anydesk.com/en/downloads/windowscnnvd
- https://argus-sec.com/discovering-tunneling-service-security-flaws-in-anydesk-remote-application/cnnvd
- https://cxsecurity.com/cveshow/CVE-2021-44425/cnnvd
- https://anydesk.com/en/downloads/windowsenisa_euvd
- https://argus-sec.com/discovering-tunneling-service-security-flaws-in-anydesk-remote-application/enisa_euvd
- https://anydesk.com/en/downloads/windowsProductVendor Advisorynvd
- https://argus-sec.com/discovering-tunneling-service-security-flaws-in-anydesk-remote-application/ExploitThird Party Advisorynvd
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