Application API Message Manipulation in RustDesk Client across Multiple Platforms
CVE-2026-30792

9.1CRITICAL

Key Information:

Vendor

Rustdesk-client

Status
Rustdesk Client
Vendor
CVE Published:
5 March 2026

Badges

👾 Exploit Exists

What is CVE-2026-30792?

The RustDesk Client is susceptible to a vulnerability that enables Man-in-the-Middle attacks, allowing unauthorized manipulation of Application API messages. This issue arises from weaknesses in communication protocols across various platforms, including Windows, macOS, Linux, iOS, Android, and WebClient. The vulnerability stems from specific program files and routines, which, if exploited, can compromise the integrity of data and communication within the RustDesk application. Users are advised to assess their deployment configurations and implement necessary safeguards to mitigate potential risks.

Affected Version(s)

RustDesk Client Windows 0 <= 1.4.5

References

https://rustdesk.com/docs/en/self-host/client-configurati...
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:
9.1
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Erez Kalman
Erez Kalman
.