---
id: CVE-2026-57850
title: >-
  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 …
summary: >-
  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 …
severity: high
cvss: 8.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L'
cwe:
  - CWE-862
published: '2026-07-10'
updated: '2026-07-10'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-57850'
references:
  - url: 'https://github.com/rustdesk/rustdesk'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/rustdesk/rustdesk/commit/493b14ba78abc3dfb33f109c7f93c1c95a1dabc4
    label: disclosure@vulncheck.com
  - url: 'https://github.com/rustdesk/rustdesk/pull/15469'
    label: disclosure@vulncheck.com
  - url: 'https://github.com/rustdesk/rustdesk/releases/tag/1.4.9'
    label: disclosure@vulncheck.com
tags:
  - nvd
  - exploit-available
epss: 0.00498
epssPercentile: 0.4013
ingestedAt: '2026-07-11T20:15:26.783Z'
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/sn0x-sharma/CVE-2026-57850'
  checkedAt: '2026-09-26T09:05:51.551Z'
exploitAvailable: true
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.