CVE-2020-5722

Status: AnalyzedCritical (9.8)⚠ Active exploitation💥 Exploit

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.

CVSS

Version: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base score: 9.8

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 84%
Percentile among all scored CVEs: 100
Score date: 10/7/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

CISA KEV — actively exploited

Added to catalog: 1/28/2022
Remediation due date: 7/28/2022
Known ransomware use: Unknown

💥 Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Metasploit module (reliable, widely available exploit) · Grandstream UCM62xx IP PBX sendPasswordEmail RCE
Published on Exploit-DB · UCM6202 1.0.18.13 - Remote Command Injection (3/24/2020)
Nuclei template (automated mass detection) · Grandstream UCM6200 - SQL Injection

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

ExploitationT1190 Exploit Public-Facing Applicationinitial access95 %
Secondary impactT1005 Data from Local Systemcollection85 %
Secondary impactT1565.001 Stored Data Manipulationimpact80 %

SQL injection remota sin autenticación (CWE-89) en interfaz HTTP permite ejecución de comandos shell como root. Vector CVSS AV:N/PR:N/UI:N confirma explotabilidad remota directa (T1190). Impactos: ejecución de comandos (T1059.007), lectura de datos SQL (T1005), modificación de correos de recuperació

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Vulnerability Scanning Restrict File and Directory Permissions Privileged Account Management Remote Data Storage Network Segmentation Limit Access to Resource Over Network

Affected technologies (1)

Grandstream — Ucm6200 Firmware

CWEs

CWE-89
CWE-89

References

Raw JSON (NVD)

Show

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