CVE-2026-58056

highCVSS 7.6covered by 1 sourcefirst seen 2026-06-28

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.

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Exploitation outlook

Low exploitation risk0.19% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 9% of all EPSS-scored CVEs.

Advisory coverage (1)

highCVE-2026-58056: RustDesk gates incoming control messages on per-capability flags rather than on the session's …nvd · 2026-06-28

External references

NVD record for CVE-2026-58056

CVE.org record

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