Is this vulnerability remotely exploitable over the internet?

Yes, indirectly. An attacker can host or send a malicious link that, when opened on a device with RustDesk Client installed, triggers the vulnerable URI handler locally. The attack originates from external content but executes on the victim's machine.

What level of access does an attacker need to exploit this issue?

The attacker does not need prior access to the victim's RustDesk installation. They only need to convince the victim to open a crafted `rustdesk://` link (for example, through a web page, email, chat message, or document) on a device where RustDesk Client is installed and the URI scheme is registered.

What is the safest general fix pattern for this class of vulnerability?

The safest pattern is to ensure that custom URI handlers and deep links never perform privileged actions directly. Instead, they should open a secure, authenticated UI flow where the user must explicitly confirm or initiate any sensitive operation, such as changing passwords or enabling remote access.

Severity:

CRITICAL RISK

(9.8)

CSRF-Driven Privilege Escalation (CWE-352, CWE-285) in RustDesk Client URI Scheme Handling

CVE-2026-30793

Published:

Mar 5, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

Cross-Site Request Forgery (CSRF)

CWE:

CWE-285;CWE-352

Impact:

Privilege Escalation via Forced State-Changing Actions

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Cross-Site Request Forgery (CSRF)

CWE:

CWE-285;CWE-352

Impact:

Privilege Escalation via Forced State-Changing Actions

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

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CSRF-Driven Privilege Escalation (CWE-352, CWE-285) in RustDesk Client URI Scheme Handling

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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