CVE-2026-30796
HIGHCVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
2Description
Cleartext Transmission of Sensitive Information vulnerability in rustdesk-server-pro RustDesk Server Pro rustdesk-server-pro on Windows, MacOS, Linux (Address book sync API modules) allows Sniffing Attacks. This vulnerability is associated with program files Closed source - API endpoint handling heartbeat sync and program routines Heartbeat API handler (accepts preset-address-book-password in plaintext). This issue affects RustDesk Server Pro: through 1.7.5.
Analysis
RustDesk Server Pro through version 1.7.5 transmits sensitive address book credentials in cleartext over the network heartbeat synchronization API, enabling attackers to intercept and obtain authentication credentials without authentication. The vulnerability affects Windows, macOS, and Linux deployments where the address book sync functionality is enabled. …
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Remediation
Within 7 days: Identify all affected systems and apply vendor patches promptly. Monitor vendor channels for patch availability.
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