CVE-2025-71284
High PUBLISHEDSynway SMG Gateway Management Software OS Command Injection via radius_address
Not yet in CISA KEV
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
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).
- CVE Published
- Apr 30, 2026
- Exploitation Reported
- Apr 30, 2026
- CVSS
- 9.3 Critical
- EPSS
- —
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| Synway Information Engineering Co., Ltd. |
Synway SMG Gateway Management Software
|
0 |
Affected |
CVE References
- Third-Party Advisory — vulncheck.com vulncheck.com · Third-Party Advisory https://www.vulncheck.com/advisories/synway-smg-gateway-management-so...
- Exploit — mrxn.net mrxn.net · Exploit https://mrxn.net/jswz/synway-9-2radius-rce.html
- Exploit — mp.weixin.qq.com mp.weixin.qq.com · Exploit https://mp.weixin.qq.com/s/PyepoFSuQ63E3RnpQa9nsA
- Product — synway.net synway.net · Product https://www.synway.net/
- GitHub — projectdiscovery/nuclei-templates github.com · CVE Record https://github.com/projectdiscovery/nuclei-templates/blob/main/http/v...
Recommended Actions
- Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| The Shadowserver First | 2026-04-30 16:08 UTC |
No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
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
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitation Status
Exploited in the wild
Recorded 2026-04-30 16:08:17 UTC · The Shadowserver
Weaknesses (CWE)
-
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
16:08 UTC 2 months ago16:08 UTC · 2 months ago
CVE published
Vulnerability disclosed publicly
-
16:08 UTC 2 months ago16:08 UTC · 2 months ago
Added to KEVIntel KEV Feed
High-confidence, third-party attested exploitation
-
15:53 UTC 3 months ago15:53 UTC · 3 months ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2025-71284
{
"cve_id": "CVE-2025-71284",
"title": "Synway SMG Gateway Management Software OS Command Injection via radius_address",
"affected_vendor": "Synway Information Engineering Co., Ltd.",
"affected_product": "Synway SMG Gateway Management Software",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "High",
"cvss_score": 9.3,
"epss_score": null,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}