Missing Authorization Vulnerability in RustDesk Client
CVE-2026-30797

9.3CRITICAL

Key Information:

Vendor

Rustdesk-client

Status
Rustdesk Client
Vendor
CVE Published:
5 March 2026

Badges

👾 Exploit Exists

What is CVE-2026-30797?

The RustDesk Client is exposed to a missing authorization vulnerability that enables attackers to manipulate Application API Messages through a Man-in-the-Middle (MitM) attack. This issue primarily affects the URI scheme handler and configuration import modules across various platforms, including Windows, MacOS, Linux, iOS, and Android. Attackers can exploit the flaw via the importConfig() routine found in the flutter/lib/common.dart file, potentially leading to unauthorized access and data manipulation.

Affected Version(s)

RustDesk Client Windows 0 <= 1.4.5

References

https://rustdesk.com/docs/en/client/
technical-descriptionx_--config documentation
https://docs.google.com/document/d/e/2PACX-1vSds6jjpd38oO...
third-party-advisoryexploit
https://www.vulsec.org/
vdb-entrythird-party-advisory

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Erez Kalman
Erez Kalman
.