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Trendnet TEW-657BRM CVE-2026-5351

| EUVD-2026-18362 LOW
OS Command Injection (CWE-78)
2026-04-02 VulDB GHSA-3w99-p9rf-w2qj
2.1
CVSS 4.0

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

6
Severity Changed
Apr 29, 2026 - 01:11 NVD
MEDIUM LOW
CVSS changed
Apr 29, 2026 - 01:11 NVD
5.3 (MEDIUM) 2.1 (LOW)
PoC Detected
Apr 07, 2026 - 17:21 vuln.today
Public exploit code
EUVD ID Assigned
Apr 02, 2026 - 16:00 euvd
EUVD-2026-18362
Analysis Generated
Apr 02, 2026 - 16:00 vuln.today
CVE Published
Apr 02, 2026 - 15:45 nvd
MEDIUM 5.3

DescriptionNVD

A weakness has been identified in Trendnet TEW-657BRM 1.00.1. This affects the function add_wps_client of the file /setup.cgi. This manipulation of the argument wl_enrolee_pin causes os command injection. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks. The vendor confirms, that "[t]he product in question (...) has been discontinued and end of life since June 23, 2011, that is more than 14 years ago. We no longer provide support for this product, so we are not able to confirm the vulnerabilities. We will make an announcement on our website's product support page and notify customers who registered their products with us." This vulnerability only affects products that are no longer supported by the maintainer.

AnalysisAI

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.

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CVE-2026-5351 vulnerability details – vuln.today

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