# CVE-2025-71284

> Vulnerability · severity: **CRITICAL** (CVSS 9.8).

## Description

Synway SMG Gateway Management Software contains an OS command injection vulnerability in the RADIUS configuration endpoint at /en/9-2radius.php where the radius_address POST parameter is split and interpolated directly into a sed command without sanitization. An unauthenticated remote attacker can inject arbitrary shell commands by submitting a POST request with crafted radius_address, radius_address2, shared_secret2, source_ip, timeout, or retry parameters along with save=1 and enable_radius=1 to achieve remote code execution. Exploitation evidence was first observed by the Shadowserver Foundation on 2025-07-11 (UTC).

## Key facts

- **CVE ID:** CVE-2025-71284
- **Published:** 2026-04-30
- **CVSS severity:** CRITICAL
- **CVSS base score:** 9.8
- **CWE codes:** CWE-78

## Affected products

- `synway:smg_gateway_management_software`

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-71284

## Citation

> AI Analytics. CVE-2025-71284. Retrieved 2026-07-20 from https://api.ai-analytics.org/cve/CVE-2025-71284. Derived from NIST NVD. Licensed CC0.

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