CVE-2020-5759

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

Grandstream UCM6200 series firmware version 1.0.20.23 and below is vulnerable to OS command injection via SSH. An authenticated remote attacker can execute commands as the root user by issuing a specially crafted "unset" command.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-78

Affected software

No affected versions have been published.

Timeline

Published
Jul 17, 2020
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2020-5759: Critical severity, CVSS 9.8 | Vulnix