CVE-2026-58056

RustDesk - FileTransfer Session Authorization Scope Bypass

Published Jun 28, 2026 CVSS 4.0 · 7.2 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title RustDesk - FileTransfer Session Authorization Scope Bypass
First Time appeared Rustdesk
Rustdesk rustdesk
Weaknesses CWE-863
CPEs cpe:2.3:a:rustdesk:rustdesk:*:*:*:*:*:*:*:*
Vendors & Products Rustdesk
Rustdesk rustdesk
References
Metrics cvssV3_1

{'score': 7.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L'}

cvssV4_0

{'score': 7.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Jul 18, 2026, 8:03 PM
Reserved
Jun 28, 2026, 12:55 AM
Status
Deferred
Published
Jun 28, 2026, 2:16 AM
Modified
Oct 25, 2026, 5:10 PM