CVE-2026-58056
High
Description
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.
SeverityHigh
CVSS7.6
Exploit probability—
ProductRustDesk
PublishedJun 28, 2026
First seenJun 28, 2026
Weakness typeCWE-863Incorrect authorization
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| RustDesk RustDesk | v ≤ 1.4.8 | — |
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