Privilege Abuse Vulnerability in RustDesk Client Across Multiple Platforms
CVE-2026-30783

8.8HIGH

Key Information:

Vendor

Rustdesk-client

Status
Rustdesk Client
Vendor
CVE Published:
5 March 2026

Badges

👾 Exploit Exists

What is CVE-2026-30783?

A vulnerability in the RustDesk Client allows for Privilege Abuse across its Windows, MacOS, Linux, iOS, Android, and WebClient versions. This security flaw arises from issues in critical components such as the client signaling, API sync loop, and configuration management modules. Specifically, it affects program files including src/rendezvous_mediator.Rs and src/hbbs_http/sync.Rs, permitting unauthorized access to system privileges. Organizations utilizing vulnerable versions should prioritize updates to mitigate the associated risks.

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:
8.8
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Erez Kalman
Erez Kalman
.