CVE-2026-5354: OS Command Injection in Trendnet TEW-657BRM
CVE-2026-5354 is a medium-severity OS command injection vulnerability in the Trendnet TEW-657BRM router version 1. 00. 1. The flaw exists in the vpn_connect function of the /setup. cgi file, where manipulation of the policy_name argument can lead to remote command execution. The product has been discontinued and reached end-of-life in 2011, and the vendor no longer provides support or patches. Exploit code has been published, but no known exploits in the wild are reported. Due to the product's unsupported status, no official fix is available.
AI Analysis
Technical Summary
This vulnerability affects the Trendnet TEW-657BRM router firmware version 1.00.1. An attacker can remotely exploit the vpn_connect function in /setup.cgi by manipulating the policy_name parameter to perform OS command injection. The vendor has confirmed the product is discontinued and unsupported since 2011, thus no patches or official remediation are provided. The CVSS 4.0 base score is 5.3, indicating medium severity with network attack vector, low complexity, and no user interaction required.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary OS commands on the affected device, potentially compromising the router's integrity and confidentiality. Since the device is end-of-life and unsupported, vulnerabilities remain unpatched, increasing risk for users still operating this hardware. However, no known active exploitation has been reported.
Mitigation Recommendations
No official patch or fix is available due to the product's discontinued and unsupported status. Users are advised to replace the affected device with a supported model to mitigate this vulnerability. The vendor has announced they will notify registered customers via their product support page but cannot provide direct remediation.
CVE-2026-5354: OS Command Injection in Trendnet TEW-657BRM
Description
CVE-2026-5354 is a medium-severity OS command injection vulnerability in the Trendnet TEW-657BRM router version 1. 00. 1. The flaw exists in the vpn_connect function of the /setup. cgi file, where manipulation of the policy_name argument can lead to remote command execution. The product has been discontinued and reached end-of-life in 2011, and the vendor no longer provides support or patches. Exploit code has been published, but no known exploits in the wild are reported. Due to the product's unsupported status, no official fix is available.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects the Trendnet TEW-657BRM router firmware version 1.00.1. An attacker can remotely exploit the vpn_connect function in /setup.cgi by manipulating the policy_name parameter to perform OS command injection. The vendor has confirmed the product is discontinued and unsupported since 2011, thus no patches or official remediation are provided. The CVSS 4.0 base score is 5.3, indicating medium severity with network attack vector, low complexity, and no user interaction required.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary OS commands on the affected device, potentially compromising the router's integrity and confidentiality. Since the device is end-of-life and unsupported, vulnerabilities remain unpatched, increasing risk for users still operating this hardware. However, no known active exploitation has been reported.
Mitigation Recommendations
No official patch or fix is available due to the product's discontinued and unsupported status. Users are advised to replace the affected device with a supported model to mitigate this vulnerability. The vendor has announced they will notify registered customers via their product support page but cannot provide direct remediation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-04-01T16:47:18.384Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 69cec35ae6bfc5ba1dfb4cf9
Added to database: 4/2/2026, 7:28:26 PM
Last enriched: 4/9/2026, 10:53:40 PM
Last updated: 5/20/2026, 9:38:16 PM
Views: 62
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