CVE-2025-71284: Synway Smg Gateway Management Software remote code execution (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).

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected products

Synway Smg Gateway Management Softwareall versions

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/synway/synwaysmg-radius-rce.yamlThird Party Advisory
https://mp.weixin.qq.com/s/PyepoFSuQ63E3RnpQa9nsAExploitThird Party Advisory
https://mrxn.net/jswz/synway-9-2radius-rce.htmlExploitThird 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

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2025-71284 being actively exploited?

CVE-2025-71284 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 5.73%.

How severe is CVE-2025-71284?

CVE-2025-71284 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 5.73% probability of exploitation.

Which products are affected by CVE-2025-71284?

Affected products include Synway Smg Gateway Management Software.

How do I fix CVE-2025-71284?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-71284 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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