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CVE-2019-5426

4.8 · MEDIUM

In Ubiquiti Networks EdgeSwitch X v1.1.0 and prior, an unauthenticated user can use the "local port forwarding" and "dynamic port forwarding" (SOCKS proxy) functionalities.

Published Apr 10, 2019CWE-287EPSS 0.81%

Overview

CVE-2019-5426 is a medium-severity vulnerability. It was published on April 10, 2019 and has a CVSS 3.1 base score of 4.8 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

In Ubiquiti Networks EdgeSwitch X v1.1.0 and prior, an unauthenticated user can use the "local port forwarding" and "dynamic port forwarding" (SOCKS proxy) functionalities. Remote attackers without credentials can exploit this bug to access local services or forward traffic through the device if SSH is enabled in the system settings.

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

Refcommunity.ubnt.com/t5/EdgeMAX-Updates-Blog/EdgeMAX-EdgeSwitch-X-software-release-v1-1-1/ba-p/2731137Refhackerone.com/reports/512958Refcommunity.ubnt.com/t5/EdgeMAX-Updates-Blog/EdgeMAX-EdgeSwitch-X-software-release-v1-1-1/ba-p/2731137Refhackerone.com/reports/512958

How CyberStrike helps

Frequently asked questions

What is CVE-2019-5426?

CVE-2019-5426 is a medium-severity vulnerability. It was published on April 10, 2019 and has a CVSS 3.1 base score of 4.8 (MEDIUM).

How severe is CVE-2019-5426?

This vulnerability has a CVSS 3.1 base score of 4.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2019-5426?

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-2019-5426?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2019-5426 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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