HIGH

CVE-2020-5739

CVSS v3

8.8

HIGH

EPSS Score

5.3 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2020-5739 yet.

Full record on NVD

Description

Grandstream GXP1600 series firmware 1.0.4.152 and below is vulnerable to authenticated remote command execution when an attacker adds an OpenVPN up script to the phone's VPN settings via the "Additional Settings" field in the web interface. When the VPN's connection is established, the user defined script is executed with root privileges.

Technical details

Published: 2020-04-14

Frequently asked questions

What is CVE-2020-5739?

Is CVE-2020-5739 actively exploited?

Active exploitation of CVE-2020-5739 has not been confirmed. Its EPSS score was 5.3% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-5739?

CVE-2020-5739 has a CVSS v3 base score of 8.8 (HIGH severity).

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