CVE-2020-5722
Published: January 28, 2022
Official Description
Grandstream UCM6200 series is vulnerable to an unauthenticated remote SQL injection via crafted HTTP request. Exploitation can allow for code execution as root.
CISA KEV Advisory
Grandstream Networks UCM6200 Series SQL Injection Vulnerability
Grandstream UCM6200 series is vulnerable to an unauthenticated remote SQL injection via crafted HTTP request. Exploitation can allow for code execution as root.
Apply updates per vendor instructions.
Risk Analysis
This unauthenticated remote SQL injection vulnerability in Grandstream UCM6200 series allows for code execution as root. Rated as HIGH severity with a very high EPSS score, this indicates a significant likelihood of exploitation. Its presence in CISA's KEV confirms it has been actively exploited.
This vulnerability has been actively exploited in the wild and is part of CISA's KEV, confirming its use in real-world attacks. It is remotely exploitable by an unauthenticated attacker via crafted HTTP requests.
Users should update Grandstream UCM6200 series devices to the latest firmware provided by the vendor. Implement network segmentation and restrict access to these devices from untrusted networks.
Technical Analysis
CVE-2020-5722 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2020-5722 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Exploit & PoC Resources
All References (1)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2020-5722 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1