CVE-2026-58056

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.

CVSS v3 7.6 HIGH

7.6^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact HIGH

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/bikini/exploitarium/tree/main/rustdesk-session-permission-pocs
https://www.vulncheck.com/advisories/rustdesk-filetransfer-session-authorization-scope-bypass

Configurations

No configuration.

History

No history.

Information

Published : 2026-06-28 02:16

Updated : 2026-07-18 21:17

NVD link : CVE-2026-58056

Mitre link : CVE-2026-58056

CVE.ORG link : CVE-2026-58056

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

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