CVE-2026-30797

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.4.5]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "inferred", "scores": [{"score": 100.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "RustDesk Client", "source": "cna", "vendor": "rustdesk-client"}, "product": "rustdesk_client", "vendor": "rustdesk-client"}], "analysis": {"en": {"generated_at": "2026-04-16T12:20:53.505864+00:00", "value": {"mitigation_remediation": ["Apply the vendor\u2019s recommended fix: enable admin elevation and require user confirmation for configuration changes, add a configuration option to disable automatic config import, and configure the client to verify signed configuration payloads.", "If the client does not yet support the above safeguards, unregister the rustdesk:// URI scheme handler at the operating\u2011system level to prevent automatic re\u2011homing.", "Monitor for vendor updates that incorporate these safeguards, and apply any available patches or newer releases as soon as they are released."], "summary": {"action": "Patch Now", "impact": "Remote configuration hijacking leading to unauthorized remote control"}, "threat_synthesis": {"affected_systems": "The vulnerability affects the RustDesk Client (rustdesk-client) on Windows, macOS, Linux, iOS, and Android, through versions up to and including 1.4.5. Any installation that accepts URI scheme handlers or imports configuration files is at risk.", "description_and_impact": "Missing authorization in RustDesk Client allows an attacker to manipulate application API messages through a man\u2011in\u2011the\u2011middle or malicious URI, enabling the client to be silently re\u2011homed to an attacker\u2011controlled server. This flaw permits unauthorized modification of connection settings and grants the attacker full control of subsequent remote sessions, potentially exposing sensitive data and remote operations. The weakness is classified under CWE-749 (Deserialization of Untrusted Data) and CWE-862 (Missing Authorization).", "risk_and_exploitability": "The CVSS score of 9.3 marks it as critical, yet the EPSS score is less than 1\u202f% indicating a low current likelihood of exploitation. It is not listed in the CISA KEV catalog. Exploitation requires an attacker to deliver a crafted rustdesk:// URI or configuration file, or to intercept the client\u2019s configuration import process. Because no user confirmation is performed, the client silently applies the malicious settings. The obvious attack path is through phishing or compromised directories where an attacker can drop a malicious config. Even though the likelihood is low, the potential impact is high, justifying a prompt response."}}}}, "created": "2026-03-06T15:01:46.285068+00:00", "updated": "2026-04-16T12:30:06.112926+00:00", "vendors": ["rustdesk-client", "rustdesk-client$PRODUCT$rustdesk_client"]}