Vulnerability Description
RustDesk before 1.4.9 does not enforce a session's authorized connection scope on the server side, so a peer granted a limited session type (FileTransfer, PortForward, ViewCamera, or Terminal) can send control messages and login options reserved for a full Remote session. An authenticated remote peer can exploit this missing scope check to act outside its granted scope, injecting out-of-scope control messages to observe and control the host beyond the permissions it was given.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/rustdesk/rustdesk
- https://github.com/rustdesk/rustdesk/commit/493b14ba78abc3dfb33f109c7f93c1c95a1d
- https://github.com/rustdesk/rustdesk/pull/15469
- https://github.com/rustdesk/rustdesk/releases/tag/1.4.9
- https://github.com/sn0x-sharma/CVE-2026-57850
- https://www.vulncheck.com/advisories/rustdesk-missing-session-scope-enforcement-
FAQ
What is CVE-2026-57850?
CVE-2026-57850 is a vulnerability with a CVSS score of 8.3 (HIGH). RustDesk before 1.4.9 does not enforce a session's authorized connection scope on the server side, so a peer granted a limited session type (FileTransfer, PortForward, ViewCamera, or Terminal) can sen...
How severe is CVE-2026-57850?
CVE-2026-57850 has been rated HIGH with a CVSS base score of 8.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-57850?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.