High severity7.5NVD Advisory· Published Mar 30, 2020· Updated Jun 17, 2026

CVE-2020-5726

Description

The Grandstream UCM6200 series before 1.0.20.22 is vulnerable to an SQL injection via the CTI server on port 8888. A remote unauthenticated attacker can invoke the challenge action with a crafted username and discover user passwords.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Grandstream/UCM Seriesllm-fuzzy
Range: <1.0.20.22

Patches

Vulnerability mechanics

References

www.tenable.com/security/research/tra-2020-17nvdExploitThird Party Advisory
packetstormsecurity.com/files/156977/Grandstream-UCM6200-Series-CTI-Interface-SQL-Injection.htmlnvd

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epss	0.003
exploit	0.030
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ransomware	0.000