CVE-2025-71284

9.8 CRITICAL
Published: April 30, 2026 Modified: May 05, 2026
View on NVD

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).

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://mp.weixin.qq.com/s/PyepoFSuQ63E3RnpQa9nsA
Source: disclosure@vulncheck.com
Exploit Third Party Advisory
https://mrxn.net/jswz/synway-9-2radius-rce.html
Source: disclosure@vulncheck.com
Exploit Third Party Advisory
https://www.synway.net/
Source: disclosure@vulncheck.com
Product

5 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.8 / 10.0
EPSS (Exploit Probability)
1.5%
82th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

synway