CVE-2026-58056: Rustdesk

High severity, CVSS 7.6. EPSS: 0.3% chance of exploitation in the next 30 days.

RustDesk gates incoming control messages on per-capability flags rather than on the session's authorized connection type, and a file-transfer session does not clear those flags. A peer holding only a valid FileTransfer authorization can inject keyboard and mouse input and reach the unguarded screenshot and display-capture handlers, acting outside its granted scope.

Affected products

• Rustdesk Rustdesk: up to and including 1.4.8

Published 2026-06-28. Last modified 2026-07-18.