What is CVE-2026-58056?

CVE-2026-58056 is a high-severity vulnerability in Rustdesk, classified under Incorrect Authorization. CVSS score: 7.6/10. Published 2026-06-28.

How severe is CVE-2026-58056?

High severity. CVSS v3 base score is 7.6 out of 10.

Auth bypass in Rustdesk

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 in…

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L.

Affected products

Rustdesk — versions 0

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

disclosure@vulncheck.com (exploit, third-party-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-58056?: CVE-2026-58056 is a high-severity vulnerability in Rustdesk, classified under Incorrect Authorization. CVSS score: 7.6/10. Published 2026-06-28.
How severe is CVE-2026-58056?: High severity. CVSS v3 base score is 7.6 out of 10.