CVE-2026-57850
RustDesk Missing Session Scope Enforcement Allows Out-of-Scope Control Message Injection
Description
RustDesk before 1.4.9 does not enforce a session's authorized connection scope on the server side, so a peer granted a limited session type (FileTransfer, PortForward, ViewCamera, or Terminal) can send control messages and login options reserved for a full Remote session. An authenticated remote peer can exploit this missing scope check to act outside its granted scope, injecting out-of-scope control messages to observe and control the host beyond the permissions it was given.
INFO
Published Date :
July 10, 2026, 8:16 p.m.
Last Modified :
Aug. 3, 2026, 5:16 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update RustDesk to version 1.4.9 or later.
- Ensure server-side connection scope checks are enforced.
Public PoC/Exploit Available at Github
CVE-2026-57850 has a 3 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2026-57850.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-57850 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-2026-57850
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).
The remote-access engine you embed, not the app you send users to. Consent-first P2P screen sharing in Rust over iroh/QUIC. White-label, serverless MVP, Apache-2.0.
iroh p2p peer-to-peer quic remote-access remote-desktop remote-support rust screen-capture screen-sharing sdk tauri white-label cross-platform remote-control rustdesk-alternative screen-recording
Rust HTML JavaScript CSS C
None
None
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-57850 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-57850 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 Modified by [email protected]
Aug. 03, 2026
Action Type Old Value New Value Added Reference https://www.vulncheck.com/advisories/rustdesk-missing-session-scope-enforcement-allows-out-of-scope-control-message-injection -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 29, 2026
Action Type Old Value New Value Changed SSVC {'id': 'CVE-2026-57850', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-07-14T00:00:00+00:00'} {'id': 'CVE-2026-57850', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-07-15T04:00:44.875247Z'} -
CVE Modified by [email protected]
Jul. 28, 2026
Action Type Old Value New Value Changed Affected [{'vendor': 'RustDesk', 'product': 'RustDesk', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.4.9', 'versionType': 'semver'}], 'defaultStatus': 'affected'}] [{'vendor': 'RustDesk', 'product': 'RustDesk', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.4.9', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}] Removed Reference https://www.vulncheck.com/advisories/rustdesk-missing-session-scope-enforcement-allows-out-of-scope-control-message-injection -
CVE Modified by [email protected]
Jul. 20, 2026
Action Type Old Value New Value Added Reference https://www.vulncheck.com/advisories/rustdesk-missing-session-scope-enforcement-allows-out-of-scope-control-message-injection -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 15, 2026
Action Type Old Value New Value Changed SSVC {'id': 'CVE-2026-57850', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-07-13T18:19:20.378895Z'} {'id': 'CVE-2026-57850', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-07-14T00:00:00+00:00'} -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 13, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-57850', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-07-13T18:19:20.378895Z'} -
New CVE Received by [email protected]
Jul. 10, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'RustDesk', 'product': 'RustDesk', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.4.9', 'versionType': 'semver'}], 'defaultStatus': 'affected'}] Added Description RustDesk before 1.4.9 does not enforce a session's authorized connection scope on the server side, so a peer granted a limited session type (FileTransfer, PortForward, ViewCamera, or Terminal) can send control messages and login options reserved for a full Remote session. An authenticated remote peer can exploit this missing scope check to act outside its granted scope, injecting out-of-scope control messages to observe and control the host beyond the permissions it was given. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/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 CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L Added CWE CWE-862 Added Reference https://github.com/rustdesk/rustdesk Added Reference https://github.com/rustdesk/rustdesk/commit/493b14ba78abc3dfb33f109c7f93c1c95a1dabc4 Added Reference https://github.com/rustdesk/rustdesk/pull/15469 Added Reference https://github.com/rustdesk/rustdesk/releases/tag/1.4.9