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5 CVEs MEDIUM CVSS 2.1

Trendnet TEW-657BRM Command Injection

2026-04-02

CVE-2026-5351 LOW POC

OS command injection in TrendNet TEW-657BRM 1.00.1 router allows authenticated remote attackers to execute arbitrary commands via manipulation of the wl_enrolee_pin parameter in the /setup.cgi add_wps_client function. The vendor discontinued this product in June 2011 and provides no support; publicly available exploit code exists but real-world risk is minimal given the product's 14+ year obsolescence and the authentication requirement.

2.1
CVSS
0.8%
EPSS
CVE-2026-5352 LOW POC

Remote code execution via OS command injection in TrendNet TEW-657BRM 1.00.1 allows authenticated attackers to execute arbitrary commands through the pcdb_list parameter in /setup.cgi. The affected device has been end-of-life since June 2011 with no vendor support; publicly available exploit code exists but real-world impact is limited to legacy, unsupported hardware.

2.1
CVSS
0.8%
EPSS
CVE-2026-5353 LOW POC

OS command injection in Trendnet TEW-657BRM 1.00.1 ping_test function allows authenticated remote attackers to execute arbitrary commands via manipulation of the c4_IPAddr parameter in /setup.cgi. Publicly available exploit code exists. The device has been end-of-life since June 2011 and is no longer supported by the vendor, making patching infeasible for affected users.

2.1
CVSS
0.8%
EPSS
CVE-2026-5354 LOW POC

Remote authenticated command injection in TrendNet TEW-657BRM 1.00.1 allows manipulation of the policy_name parameter in /setup.cgi vpn_connect function to achieve operating system command execution with limited impact. The affected router has been end-of-life since June 2011 and is no longer supported by the vendor; however, publicly available exploit code exists and the vulnerability demonstrates real command injection capability despite the legacy product status.

2.1
CVSS
0.8%
EPSS
CVE-2026-5355 LOW

Remote authenticated OS command injection in TrendNet TEW-657BRM 1.00.1 router via the vpn_drop function in /setup.cgi allows low-privileged attackers to execute arbitrary commands with limited impact on system confidentiality, integrity, and availability. The vendor confirmed the product reached end-of-life on June 23, 2011, and will not provide support or patches. Public exploit code exists, but this vulnerability affects only discontinued hardware no longer receiving vendor maintenance.

2.1
CVSS
0.8%
EPSS

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