Cleartext Transmission Vulnerability in RustDesk Client Across Multiple Platforms
CVE-2026-30795

8.7HIGH

Key Information:

Vendor

Rustdesk-client

Status
Rustdesk Client
Vendor
CVE Published:
5 March 2026

Badges

👾 Exploit Exists

What is CVE-2026-30795?

A vulnerability exists in the RustDesk Client across multiple platforms, including Windows, MacOS, Linux, iOS, and Android. This issue arises from the cleartext transmission of sensitive information during the Heartbeat sync loop processes. Specifically, it affects the heartbeat JSON payload construction that includes the preset address book password, making the application susceptible to sniffing attacks. As a result, unauthorized entities may intercept sensitive data during transit, compromising user privacy and security.

Affected Version(s)

RustDesk Client Windows 0 <= 1.4.5

References

https://github.com/rustdesk/rustdesk
product
https://docs.google.com/document/d/e/2PACX-1vSds6jjpd38oO...
third-party-advisoryexploit
https://www.vulsec.org/
vdb-entrythird-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
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
.