# CVE-2020-5722: Grandstream Networks UCM6200 Series SQL Injection Vulnerability

Source: https://junglewise.ai/threats/cve-2020-5722-grandstream-networks-ucm6200-series-sql-injection-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-01-28. Updated: 2026-05-10  
License: CC BY 4.0 with a link back

CVE-2020-5722 · Severity: critical · CVSS 9.8 · Exploited in the wild · Published 2022-01-28

The HTTP interface of Grandstream UCM6200 series IP PBX devices is vulnerable to an unauthenticated remote SQL injection via crafted HTTP requests. Successful exploitation allows attackers to execute shell commands as root or inject malicious HTML into password recovery emails.

Vendors: [Grandstream](https://junglewise.ai/threats/vendors/grandstream).

## Quick answers

**Is CVE-2020-5722 exploited in the wild?** Yes. CVE-2020-5722 is known to be exploited in the wild, first recorded on 28 January 2022. Treat it as urgent.

**How severe is CVE-2020-5722?** Critical severity, with a CVSS score of 9.8, published 28 January 2022.

**Which products and versions are affected?** Grandstream Networks UCM6200 Series Firmware before 1.0.19.20 (root shell execution); before 1.0.20.17 (HTML injection).

**Is there a fix for CVE-2020-5722?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2020-5722 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2020-5722?** Check whether you run Grandstream UCM6200. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Grandstream Networks UCM6200 Series Firmware before 1.0.19.20 (root shell execution); before 1.0.20.17 (HTML injection)

## Timeline

- 2020-03-23: disclosed: NVD Published Date
- 2022-01-28: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
- 2022-01-28: advisory: Publication date of the provided advisory summary