Description
Grandstream UCM6200 series firmware version 1.0.20.23 and below is vulnerable to OS command injection via HTTP. An authenticated remote attacker can execute commands as the root user by sending a crafted HTTP GET to the UCM's "Old" HTTPS API.
References (2)
Core 2
Core References
Broken Link, Third Party Advisory x_refsource_confirm
https://www.tenable.com/security/research/tra-2020-42
Not Applicable
https://www.tenable.com/cve/CVE-2020-5758
Scores
CVSS v3
8.8
EPSS
0.0437
EPSS Percentile
90.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-78
Status
published
Products (3)
grandstream/ucm6202_firmware
< 1.0.20.23
grandstream/ucm6204_firmware
< 1.0.20.23
grandstream/ucm6208_firmware
< 1.0.20.23
Published
Jul 17, 2020
Tracked Since
Feb 18, 2026