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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.032 (87.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 87.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.032 · newest: 0.032 · change: 0.000
Affected products
- Grandstream Ucm6202
- Grandstream Ucm6202 Firmware
- Grandstream Ucm6204
- Grandstream Ucm6204 Firmware
- Grandstream Ucm6208
- Grandstream Ucm6208 Firmware
- Grandstream Ucm6200 Series — versions Versions 1.0.20.23 and below
Weakness classification (CWE)
References
- www.tenable.com/security/research/tra-2020-42 (Not Applicable)
- www.tenable.com/cve/CVE-2020-5759 (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.