CVE-2019-5426

Name: CVE-2019-5426
Creator: NVD / NIST
Published: 2019-04-10T18:29:00.62+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.81%

Last modified Jun 17, 2026

CVE-2019-5426 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. 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.. EPSS estimates a 0.81% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

4.8/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS Probability

0.81%

52.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Ui	Edgeswitch X	<= 1.1.0

References

https://community.ubnt.com/t5/EdgeMAX-Updates-Blog/EdgeMAX-EdgeSwitch-X-software-release-v1-1-1/ba-p/2731137Patch, Vendor Advisory
https://hackerone.com/reports/512958Third Party Advisory
https://community.ubnt.com/t5/EdgeMAX-Updates-Blog/EdgeMAX-EdgeSwitch-X-software-release-v1-1-1/ba-p/2731137Patch, Vendor Advisory
https://hackerone.com/reports/512958Third Party Advisory

Timeline

Published: Apr 10, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-5426?

How severe is CVE-2019-5426?

CVE-2019-5426 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.81% probability of exploitation in the next 30 days.

How do I fix CVE-2019-5426?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-5426?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST