CVE-2026-30795
Received Received - Intake

Cleartext Data Exposure in RustDesk Client Heartbeat Sync

Publication date: 2026-03-05

Last updated on: 2026-03-25

Assigner: VULSec Labs

Description
Cleartext Transmission of Sensitive Information vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android (Heartbeat sync loop modules) allows Sniffing Attacks. This vulnerability is associated with program files src/hbbs_http/sync.Rs and program routines Heartbeat JSON payload construction (preset-address-book-password). This issue affects RustDesk Client: through 1.4.5.

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Meta Information

Published
2026-03-05
Last Modified
2026-03-25
Generated
2026-07-06
AI Q&A
2026-03-05
EPSS Evaluated
2026-07-05
NVD
CVE-2026-30795
EUVD
EUVD-2026-9829

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
rustdesk rustdesk to 1.4.5 (inc)

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Exploitability

CWE
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KEV
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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.

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Executive Summary

This vulnerability is a Cleartext Transmission of Sensitive Information issue found in the RustDesk Client (rustdesk-client) on multiple platforms including Windows, MacOS, Linux, iOS, and Android. It occurs in the Heartbeat sync loop modules, specifically related to the construction of Heartbeat JSON payloads that include preset address book passwords. Because the sensitive information is transmitted in cleartext, it allows attackers to perform sniffing attacks and intercept this data.

Impact Analysis

The impact of this vulnerability is that sensitive information, such as passwords, can be intercepted by attackers through network sniffing. This can lead to unauthorized access to user data or systems, compromising confidentiality and potentially enabling further attacks or data breaches.

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