CVE-2026-30798 PUBLISHED

RustDesk Client Accepts Unauthenticated stop-service Command via Strategy Payload

Assigner: VULSec
Reserved: 05.03.2026 Published: 05.03.2026 Updated: 05.03.2026

Insufficient Verification of Data Authenticity, Improper Handling of Exceptional Conditions vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android (Heartbeat sync loop, strategy processing modules) allows Protocol Manipulation. This vulnerability is associated with program files src/hbbs_http/sync.Rs and program routines stop-service handler in heartbeat loop.

This issue affects RustDesk Client: through 1.4.5.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS Score: 8.2

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	Present	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	rustdesk-client
Product	RustDesk Client
Versions	Default: affected affected from 0 to 1.4.5 (incl.)

Affected Configurations

Client connected to API server (or re-homed via rustdesk://config)

Exploits

PoC available.

Workarounds

None effective

Solutions

Remove remote kill logic, or require time-limited signed payloads

Credits

Erez Kalman finder
Erez Kalman reporter

References

https://rustdesk.com/docs/en/client/

Problem Types

CWE-345 Insufficient Verification of Data Authenticity CWE
CWE-755 Improper Handling of Exceptional Conditions CWE

Impacts

CAPEC-272 Protocol Manipulation