CVE-2026-30796
Cleartext Transmission in RustDesk Server Pro Enables Data Sniffing
Publication date: 2026-03-05
Last updated on: 2026-03-25
Assigner: VULSec Labs
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| rustdesk | rustdesk_server | to 1.7.5 (inc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-319 | The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a Cleartext Transmission of Sensitive Information issue found in rustdesk-server-pro, specifically in the RustDesk Server Pro software on Windows, MacOS, and Linux platforms. It affects the Address book sync API modules, where sensitive information such as the preset-address-book-password is transmitted in plaintext through the Heartbeat API handler. This allows attackers to perform sniffing attacks by intercepting this unencrypted sensitive data during transmission.
How can this vulnerability impact me? :
The impact of this vulnerability is that an attacker who can intercept network traffic between the client and the RustDesk Server Pro can capture sensitive information like passwords transmitted in cleartext. This can lead to unauthorized access to address book data or other sensitive resources managed by the server, potentially compromising user privacy and security.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know