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CVE-2026-57850

8.3 · HIGH

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…

Published Jul 10, 2026CWE-862EPSS 0.50%

Overview

CVE-2026-57850 is a high-severity vulnerability. It was published on July 10, 2026 and has a CVSS 3.1 base score of 8.3 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.3, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/rustdesk/rustdeskGitHubgithub.com/rustdesk/rustdesk/commit/493b14ba78abc3dfb33f109c7f93c1c95a1dabc4GitHubgithub.com/rustdesk/rustdesk/pull/15469GitHubgithub.com/rustdesk/rustdesk/releases/tag/1.4.9GitHubgithub.com/sn0x-sharma/CVE-2026-57850Refwww.vulncheck.com/advisories/rustdesk-missing-session-scope-enforcement-allows-out-of-scope-control-message-injection

How CyberStrike helps

Frequently asked questions

What is CVE-2026-57850?

CVE-2026-57850 is a high-severity vulnerability. It was published on July 10, 2026 and has a CVSS 3.1 base score of 8.3 (HIGH).

How severe is CVE-2026-57850?

This vulnerability has a CVSS 3.1 base score of 8.3, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-57850?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-57850?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-57850 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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