Security readout for executives and security teams
Plain-English summary
CVE-2025-71284 is a critical remote code execution issue in Synway SMG Gateway Management Software. An unauthenticated attacker may run operating-system commands through the RADIUS configuration function if the management interface is reachable. This can lead to full compromise of the gateway and possible disruption of voice or gateway services.
Executive priority
Prioritize within 24 hours for any exposed Synway SMG management interface. The business risk is device takeover and service disruption. If the interface is internal-only and tightly restricted, validate exposure and monitor, but still track vendor remediation because affected-version detail is incomplete.
Technical view
The issue is CWE-78 OS command injection in the RADIUS configuration endpoint, /en/9-2radius.php. Source material says user-controlled RADIUS POST parameters are interpolated into a shell sed command without sanitization. CVSS is 9.8: network exploitable, low complexity, no privileges, no user interaction, with high confidentiality, integrity, and availability impact.
Likely exposure
Highest exposure is Synway SMG management software reachable from the internet or untrusted networks. Version data is incomplete in the source bundle, listing version “0,” so teams should treat exposed Synway SMG management interfaces as potentially affected until Synway or a trusted advisory clarifies scope.
Exploitation context
CISA KEV status is false in the provided data. However, the source bundle states Shadowserver observed exploitation evidence on 2025-07-11, and public technical and scanner references exist. That combination suggests defenders should assume realistic attack interest, especially for internet-exposed management portals.
Researcher notes
Evidence supports unauthenticated command injection leading to RCE, but affected-version and patch details are incomplete in the provided sources. Avoid assuming all firmware builds are affected without vendor confirmation. Public exploit-oriented writeups and a nuclei template are referenced, so detection should focus on exposure, anomalous requests, and configuration integrity.
Mitigation direction
- Remove internet exposure for Synway SMG management interfaces immediately.
- Restrict access to trusted admin networks or VPN only.
- Check Synway guidance for fixed firmware or official remediation.
- Apply vendor updates when available and tested.
- Monitor for suspicious RADIUS configuration changes or unexpected processes.
- If compromise is suspected, isolate the device and preserve logs.
Validation and detection
- Inventory all Synway SMG gateways and management URLs.
- Confirm whether management interfaces are internet-accessible.
- Review web logs for unusual POST activity to the RADIUS configuration page.
- Check device configuration for unauthorized RADIUS changes.
- Use approved vulnerability scanning only in controlled environments.
- Document firmware versions and compare against vendor guidance.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-78: Command execution behavior lookup
Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2025-71284 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/synway/synwaysmg-radius-rce.yamlCVE reference
- https://mrxn.net/jswz/synway-9-2radius-rce.htmlCVE reference · technical-description, exploit
- https://mp.weixin.qq.com/s/PyepoFSuQ63E3RnpQa9nsACVE reference · technical-description, exploit
- https://www.synway.net/CVE reference · product
- https://www.vulncheck.com/advisories/synway-smg-gateway-management-software-os-command-injection-via-radius-addressCVE reference · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.