CVE-2026-30784
RustDesk hbbs/hbbr Servers Broker Connections Without Any Authorization Check
Description
Missing Authorization, Missing Authentication for Critical Function vulnerability in rustdesk-server RustDesk Server rustdesk-server, rustdesk-server-pro on hbbs/hbbr on all server platforms (Rendezvous server (hbbs), relay server (hbbr) modules) allows Privilege Abuse. This vulnerability is associated with program files src/rendezvous_server.Rs, src/relay_server.Rs and program routines handle_punch_hole_request(), RegisterPeer handler, relay forwarding. This issue affects RustDesk Server: through 1.7.5, through 1.1.15.
INFO
Published Date :
March 5, 2026, 4:16 p.m.
Last Modified :
March 25, 2026, 4:19 p.m.
Remotely Exploit :
Yes !
Source :
2fdefc65-d750-4b8d-96ee-6e2c0c42dbfe
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 4.0 | HIGH | 2fdefc65-d750-4b8d-96ee-6e2c0c42dbfe | ||||
| CVSS 4.0 | HIGH | 2fdefc65-d750-4b8d-96ee-6e2c0c42dbfe |
Solution
- Update RustDesk Server to version 1.7.5 or later.
- Apply security patches for affected modules.
- Ensure proper authentication is enforced.
- Verify authorization controls are correctly implemented.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-30784.
| URL | Resource |
|---|---|
| https://docs.google.com/document/d/e/2PACX-1vSds6jjpd38oO_yIAyd1HYtKNUuea-I-ozAPpGhYI7QgAU-QGJ7D8a4rOZVj1vmiUXV1EcdRHf9aZAW/pub | Exploit Third Party Advisory |
| https://rustdesk.com/docs/en/self-host/ | Product Vendor Advisory |
| https://www.vulsec.org/ | Not Applicable |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-30784 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-30784
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-30784 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-30784 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Mar. 25, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:rustdesk:rustdesk_server:*:*:*:*:pro:*:*:* versions up to (including) 1.7.5 *cpe:2.3:a:rustdesk:rustdesk_server:*:*:*:*:oss:*:*:* versions up to (including) 1.1.15 Added Reference Type VULSec Labs: https://docs.google.com/document/d/e/2PACX-1vSds6jjpd38oO_yIAyd1HYtKNUuea-I-ozAPpGhYI7QgAU-QGJ7D8a4rOZVj1vmiUXV1EcdRHf9aZAW/pub Types: Exploit, Third Party Advisory Added Reference Type VULSec Labs: https://rustdesk.com/docs/en/self-host/ Types: Product, Vendor Advisory Added Reference Type VULSec Labs: https://www.vulsec.org/ Types: Not Applicable -
CVE Modified by 2fdefc65-d750-4b8d-96ee-6e2c0c42dbfe
Mar. 05, 2026
Action Type Old Value New Value Added Reference https://docs.google.com/document/d/e/2PACX-1vSds6jjpd38oO_yIAyd1HYtKNUuea-I-ozAPpGhYI7QgAU-QGJ7D8a4rOZVj1vmiUXV1EcdRHf9aZAW/pub Added Reference https://www.vulsec.org/ -
New CVE Received by 2fdefc65-d750-4b8d-96ee-6e2c0c42dbfe
Mar. 05, 2026
Action Type Old Value New Value Added Description Missing Authorization, Missing Authentication for Critical Function vulnerability in rustdesk-server RustDesk Server rustdesk-server, rustdesk-server-pro on hbbs/hbbr on all server platforms (Rendezvous server (hbbs), relay server (hbbr) modules) allows Privilege Abuse. This vulnerability is associated with program files src/rendezvous_server.Rs, src/relay_server.Rs and program routines handle_punch_hole_request(), RegisterPeer handler, relay forwarding. This issue affects RustDesk Server: through 1.7.5, through 1.1.15. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/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 Added CWE CWE-306 Added CWE CWE-862 Added Reference https://rustdesk.com/docs/en/self-host/