CVE-2025-71284

Name: CVE-2025-71284
Creator: NVD / NIST
Published: 2026-04-30T17:16:25.63+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.3/10EPSS 5.73%

Last modified Jun 17, 2026

CVE-2025-71284 is a critical-severity vulnerability rated 9.3/10 on the CVSS scale. 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. EPSS estimates a 5.73% chance of exploitation in the next 30 days.

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).

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0

9.3/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

5.73%

92.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Synway	Smg Gateway Management Software	All versions

References

https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/synway/synwaysmg-radius-rce.yamlThird Party Advisory
https://mp.weixin.qq.com/s/PyepoFSuQ63E3RnpQa9nsAExploit, Third Party Advisory
https://mrxn.net/jswz/synway-9-2radius-rce.htmlExploit, Third Party Advisory
https://www.synway.net/Product
https://www.vulncheck.com/advisories/synway-smg-gateway-management-software-os-command-injection-via-radius-addressThird Party Advisory

Timeline

Published: Apr 30, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-71284?

How severe is CVE-2025-71284?

CVE-2025-71284 has a CVSS score of 9.3/10 (CRITICAL severity). The EPSS model estimates a 5.73% probability of exploitation in the next 30 days.

How do I fix CVE-2025-71284?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-71284?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST