CVE-2020-5722
Grandstream Networks UCM6200 Series SQL Injection Vulnerability
- Critical 9.8
- Exploited: added to CISA KEV 28 Jan 2022
Description
The HTTP interface of the Grandstream UCM6200 series is vulnerable to an unauthenticated remote SQL injection via crafted HTTP request. An attacker can use this vulnerability to execute shell commands as root on versions before 1.0.19.20 or inject HTML in password recovery emails in versions before 1.0.20.17.
Key facts
- Published
- 23 Mar 2020
- Last changed
- 21 Oct 2025
- Assigned by
- tenable
- KEV added
- 28 Jan 2022
- KEV fix due
- 28 Jul 2022
- EPSS
- 84.287% likely to be exploited in the next 30 days, higher than 99.703% of CVEs (scores for 15 Nov 2026)
- SSVC (CISA)
- Exploitation: active; Automatable: yes; Technical impact: total
Severity scores
Each score is shown as its source gave it. They are not averaged or merged.
- 9.8CVSS 3.1, Criticalfrom CISA (ADP container)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
What to do
- Apply updates per vendor instructions.CISA KEV required action
Historical context and remediation
This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.
No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.
Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| n/a | Grandstream UCM6200 Series |
|
Timeline
- 23 Mar 2020 Published
- 28 Jan 2022 CVE-2020-5722 added to CISA KEV
- 28 Jan 2022 Added to the CISA KEV catalogue
Weakness
Practice this bug class
HackZoneLabs has a hands-on lab on SQL injection (CWE-89).