VULNERABILITY INTELLIGENCE
CVE-2026-58056
CVSS score7.6 HIGH
EPSS probability0.33%
CISA KEVNot currently listed
Published2026-06-28
Last modified2026-10-25
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L
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.
Weakness classification
- disclosure@vulncheck.com: CWE-863