CVE-2026-5355: OS Command Injection in Trendnet TEW-657BRM
CVE-2026-5355 is a medium severity OS command injection vulnerability in the Trendnet TEW-657BRM router version 1. 00. 1. The issue exists in the vpn_drop function of the /setup. cgi file, where manipulation of the policy_name argument allows remote attackers to execute arbitrary OS commands. The product has been discontinued and reached end-of-life in 2011, with no vendor support or patches available. The vulnerability has been publicly disclosed, but no known exploits are reported in the wild.
AI Analysis
Technical Summary
This vulnerability involves OS command injection through the vpn_drop function in the /setup.cgi endpoint of Trendnet TEW-657BRM firmware version 1.00.1. By manipulating the policy_name parameter, an attacker can remotely execute operating system commands on the device. The product is discontinued and unsupported since 2011, and the vendor does not provide a fix or confirm the vulnerability beyond public disclosure.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary OS commands on affected devices, potentially leading to full device compromise. However, the affected product is discontinued and unsupported, limiting the practical impact to environments still using this legacy hardware.
Mitigation Recommendations
No official patch or fix is available due to the product's end-of-life status since 2011. Users are advised to discontinue use of the affected Trendnet TEW-657BRM device or isolate it from untrusted networks to mitigate risk. Monitor the vendor's product support page for any announcements, though none are expected.
CVE-2026-5355: OS Command Injection in Trendnet TEW-657BRM
Description
CVE-2026-5355 is a medium severity OS command injection vulnerability in the Trendnet TEW-657BRM router version 1. 00. 1. The issue exists in the vpn_drop function of the /setup. cgi file, where manipulation of the policy_name argument allows remote attackers to execute arbitrary OS commands. The product has been discontinued and reached end-of-life in 2011, with no vendor support or patches available. The vulnerability has been publicly disclosed, but no known exploits are reported in the wild.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves OS command injection through the vpn_drop function in the /setup.cgi endpoint of Trendnet TEW-657BRM firmware version 1.00.1. By manipulating the policy_name parameter, an attacker can remotely execute operating system commands on the device. The product is discontinued and unsupported since 2011, and the vendor does not provide a fix or confirm the vulnerability beyond public disclosure.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary OS commands on affected devices, potentially leading to full device compromise. However, the affected product is discontinued and unsupported, limiting the practical impact to environments still using this legacy hardware.
Mitigation Recommendations
No official patch or fix is available due to the product's end-of-life status since 2011. Users are advised to discontinue use of the affected Trendnet TEW-657BRM device or isolate it from untrusted networks to mitigate risk. Monitor the vendor's product support page for any announcements, though none are expected.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-04-01T16:47:21.513Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 69cea282e6bfc5ba1ded3a66
Added to database: 4/2/2026, 5:08:18 PM
Last enriched: 4/9/2026, 10:53:50 PM
Last updated: 5/20/2026, 9:39:56 PM
Views: 58
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