CVE-2026-58056
RustDesk - FileTransfer Session Authorization Scope Bypass
HIGH 7.2EPSS 0.3%
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
- RustDesk
- CVSS v4.0 VULNCHECK
- 7.2 HIGH
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS v3.1 VULNCHECK
- 7.6 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L - EPSS
- 0.33% chance of exploitation in the next 30 days, 24th percentile
- Published
- 2026-06-28
- Updated
- 2026-07-18
Proof-of-concept exploits (1)
- bikini/exploitarium/tree/main/rustdesk-session-permission-pocs5155★ · 2026-09-16