RCE in Grandstream Ucm6202
CVE-2020-5759
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.
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.032 (86.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Grandstream Ucm6202
- Grandstream Ucm6202_firmware
- Grandstream Ucm6204
- Grandstream Ucm6204_firmware
- Grandstream Ucm6208
- Grandstream Ucm6208_firmware
- N/a Grandstream Ucm6200 Series — versions Versions 1.0.20.23 and below
Weakness classification (CWE)
References
- vulnreport@tenable.com (x_refsource_CONFIRM, Not Applicable)
- nvd@nist.gov (Third Party Advisory)
Frequently asked questions
- What is CVE-2020-5759?
- CVE-2020-5759 is a critical-severity vulnerability in Grandstream Ucm6202, classified under OS Command Injection. CVSS score: 9.8/10. Published 2020-07-17.
- How severe is CVE-2020-5759?
- Critical severity. CVSS v3 base score is 9.8 out of 10.