9.8
CRITICAL
CVSS 3.1
CVE-2026-30784
RustDesk hbbs/hbbr Servers Broker Connections Without Any Authorization Check
Overview
Description
Rejected reason: This CVE ID has been withdrawn by its CVE Numbering Authority.
Details
INFO
Published Date :
March 5, 2026, 4:16 p.m.
Last Modified :
June 22, 2026, 8:16 a.m.
Remotely Exploit :
Yes !
Source :
2fdefc65-d750-4b8d-96ee-6e2c0c42dbfe
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework
for assessing the severity of vulnerabilities in software and systems.
We collect and displays CVSS scores from various sources for each CVE.
| 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 a version that addresses authentication and authorization flaws.
- 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.
Public PoC/Exploit Available at Github
CVE-2026-30784 has a 2 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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).
CVE-2026-30784: RustDesk hbbs Traffic Amplification PoC & PCAP Analysis
Updated: 3 weeks, 6 days ago
0 stars
0 fork
0 watcher
Born at : July 2, 2026, 4:42 a.m.
This repo has been linked 1 different CVEs too.
📡 PoC auto collect from GitHub. ⚠️ Be careful Malware.
security cve exploit poc vulnerability
Updated: 1 week, 2 days ago
7922 stars
1275 fork
1275 watcher
Born at : Dec. 8, 2019, 1:03 p.m.
This repo has been linked 646 different CVEs too.
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.
-
CVE Rejected by 2fdefc65-d750-4b8d-96ee-6e2c0c42dbfe
Jun. 22, 2026
Action Type Old Value New Value -
CVE Modified by 2fdefc65-d750-4b8d-96ee-6e2c0c42dbfe
Jun. 22, 2026
Action Type Old Value New Value Changed 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. Rejected reason: This CVE ID has been withdrawn by its CVE Numbering Authority. Removed CVSS V4.0 VULSec Labs: 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 Removed CVSS V3.1 NIST: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Removed CWE VULSec Labs: CWE-306 Removed CWE VULSec Labs: CWE-862 Removed 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 Removed Reference VULSec Labs: https://docs.google.com/document/d/e/2PACX-1vSds6jjpd38oO_yIAyd1HYtKNUuea-I-ozAPpGhYI7QgAU-QGJ7D8a4rOZVj1vmiUXV1EcdRHf9aZAW/pub Removed Reference VULSec Labs: https://rustdesk.com/docs/en/self-host/ Removed Reference VULSec Labs: https://www.vulsec.org/ Removed Reference Type VULSec Labs: https://docs.google.com/document/d/e/2PACX-1vSds6jjpd38oO_yIAyd1HYtKNUuea-I-ozAPpGhYI7QgAU-QGJ7D8a4rOZVj1vmiUXV1EcdRHf9aZAW/pub Types: Exploit, Third Party Advisory Removed Reference Type VULSec Labs: https://rustdesk.com/docs/en/self-host/ Types: Product, Vendor Advisory Removed Reference Type VULSec Labs: https://www.vulsec.org/ Types: Not Applicable Removed Affected [{'repo': 'https://github.com/rustdesk/rustdesk-server', 'vendor': 'rustdesk-server', 'modules': ['Rendezvous server (hbbs)', 'relay server (hbbr)'], 'product': 'RustDesk Server', 'versions': [{'status': 'affected', 'changes': [{'at': 'Server Pro', 'status': 'affected'}], 'version': '0', 'versionType': 'custom', 'lessThanOrEqual': '1.7.5'}, {'status': 'affected', 'changes': [{'at': 'Server OSS', 'status': 'affected'}], 'version': '0', 'versionType': 'custom', 'lessThanOrEqual': '1.1.15'}], 'platforms': ['hbbs/hbbr on all server platforms'], 'packageName': 'rustdesk-server, rustdesk-server-pro', 'programFiles': ['src/rendezvous_server.rs', 'src/relay_server.rs'], 'collectionURL': 'https://github.com/rustdesk/', 'defaultStatus': 'affected', 'programRoutines': [{'name': 'handle_punch_hole_request()'}, {'name': 'RegisterPeer handler'}, {'name': 'relay forwarding'}]}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-30784', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-03-06T10:28:27.311766Z'} -
CVE Modified by 2fdefc65-d750-4b8d-96ee-6e2c0c42dbfe
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://github.com/rustdesk/rustdesk-server', 'vendor': 'rustdesk-server', 'modules': ['Rendezvous server (hbbs)', 'relay server (hbbr)'], 'product': 'RustDesk Server', 'versions': [{'status': 'affected', 'changes': [{'at': 'Server Pro', 'status': 'affected'}], 'version': '0', 'versionType': 'custom', 'lessThanOrEqual': '1.7.5'}, {'status': 'affected', 'changes': [{'at': 'Server OSS', 'status': 'affected'}], 'version': '0', 'versionType': 'custom', 'lessThanOrEqual': '1.1.15'}], 'platforms': ['hbbs/hbbr on all server platforms'], 'packageName': 'rustdesk-server, rustdesk-server-pro', 'programFiles': ['src/rendezvous_server.rs', 'src/relay_server.rs'], 'collectionURL': 'https://github.com/rustdesk/', 'defaultStatus': 'affected', 'programRoutines': [{'name': 'handle_punch_hole_request()'}, {'name': 'RegisterPeer handler'}, {'name': 'relay forwarding'}]}] -
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/
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.