CVE-2020-5758
Grandstream UCM6200 series firmware version 1.0.20.23 and below is vulnerable to OS command...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2020-5758- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 9.0 High
AV:N/AC:L/Au:S/C:C/I:C/A:C - Weakness
- CWE-78
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2020-5758- Weakness
- CWE-78
- Updated
- 2026-11-02
EUVDEUVD-2020-26917 No score
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.
- Record
EUVD-2020-26917- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-fc8w-q5c3-5m5f No score
Grandstream UCM6200 series firmware version 1.0.20.23 and below is vulnerable to OS command...
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.
- Record
GHSA-fc8w-q5c3-5m5f- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-5758 is a high vulnerability (CVSS 8.8) in Grandstream Ucm6202 Firmware, published July 17, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.38%, the 91st percentile. No source names a fixed version.