{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-30784","assignerOrgId":"2fdefc65-d750-4b8d-96ee-6e2c0c42dbfe","state":"PUBLISHED","assignerShortName":"VULSec","dateReserved":"2026-03-05T14:13:35.407Z","datePublished":"2026-03-05T15:58:46.790Z","dateUpdated":"2026-03-06T10:29:25.085Z"},"containers":{"cna":{"affected":[{"collectionURL":"https://github.com/rustdesk/","defaultStatus":"affected","modules":["Rendezvous server (hbbs)","relay server (hbbr)"],"packageName":"rustdesk-server, rustdesk-server-pro","platforms":["hbbs/hbbr on all server platforms"],"product":"RustDesk Server","programFiles":["src/rendezvous_server.rs","src/relay_server.rs"],"programRoutines":[{"name":"handle_punch_hole_request()"},{"name":"RegisterPeer handler"},{"name":"relay forwarding"}],"repo":"https://github.com/rustdesk/rustdesk-server","vendor":"rustdesk-server","versions":[{"changes":[{"at":"Server Pro","status":"affected"}],"lessThanOrEqual":"1.7.5","status":"affected","version":"0","versionType":"custom"},{"changes":[{"at":"Server OSS","status":"affected"}],"lessThanOrEqual":"1.1.15","status":"affected","version":"0","versionType":"custom"}]}],"configurations":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Default — any hbbs/hbbr deployment (OSS or Pro)"}],"value":"Default — any hbbs/hbbr deployment (OSS or Pro)"}],"credits":[{"lang":"en","type":"finder","value":"Erez Kalman"},{"lang":"en","type":"reporter","value":"Erez Kalman"}],"datePublic":"2026-03-05T13:45:00.000Z","descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Missing Authorization, Missing Authentication for Critical Function vulnerability in rustdesk-server RustDesk Server rustdesk-server, rustdesk-server-pro on hbbs/hbbr on all server platforms (Rendezvous server (hbbs), relay server (hbbr) modules) allows Privilege Abuse.<p> This vulnerability is associated with program files <tt>src/rendezvous_server.Rs</tt>, <tt>src/relay_server.Rs</tt> and program routines <tt>handle_punch_hole_request()</tt>, <tt>RegisterPeer handler</tt>, <tt>relay forwarding</tt>.</p><p>This issue affects RustDesk Server: through 1.7.5, through 1.1.15.</p>"}],"value":"Missing Authorization, Missing Authentication for Critical Function vulnerability in rustdesk-server RustDesk Server rustdesk-server, rustdesk-server-pro on hbbs/hbbr on all server platforms (Rendezvous server (hbbs), relay server (hbbr) modules) allows Privilege Abuse. This vulnerability is associated with program files src/rendezvous_server.Rs, src/relay_server.Rs and program routines handle_punch_hole_request(), RegisterPeer handler, relay forwarding.\n\nThis issue affects RustDesk Server: through 1.7.5, through 1.1.15."}],"exploits":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"PoC available.<br>"}],"value":"PoC available."}],"impacts":[{"capecId":"CAPEC-122","descriptions":[{"lang":"en","value":"CAPEC-122 Privilege Abuse"}]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.8,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-862","description":"CWE-862 Missing Authorization","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-306","description":"CWE-306 Missing Authentication for Critical Function","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"2fdefc65-d750-4b8d-96ee-6e2c0c42dbfe","shortName":"VULSec","dateUpdated":"2026-03-05T17:03:15.491Z"},"references":[{"tags":["technical-description","product"],"url":"https://rustdesk.com/docs/en/self-host/"},{"tags":["third-party-advisory","exploit"],"url":"https://docs.google.com/document/d/e/2PACX-1vSds6jjpd38oO_yIAyd1HYtKNUuea-I-ozAPpGhYI7QgAU-QGJ7D8a4rOZVj1vmiUXV1EcdRHf9aZAW/pub"},{"tags":["vdb-entry","third-party-advisory"],"url":"https://www.vulsec.org/"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Implement Signed Session Authorization Tokens validated by hbbs and hbbr"}],"value":"Implement Signed Session Authorization Tokens validated by hbbs and hbbr"}],"source":{"discovery":"UNKNOWN"},"title":"RustDesk hbbs/hbbr Servers Broker Connections Without Any Authorization Check","workarounds":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Restrict network access to hbbs/hbbr ports (21116, 21117) via firewall. Use strong passwords."}],"value":"Restrict network access to hbbs/hbbr ports (21116, 21117) via firewall. Use strong passwords."}],"x_generator":{"engine":"Vulnogram 0.5.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-06T10:28:27.311766Z","id":"CVE-2026-30784","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-03-06T10:29:25.085Z"}}]}}