OS Command Injection Vulnerability in Trendnet TEW-657BRM Router
CVE-2026-5352

5.3MEDIUM

Key Information:

Vendor

Trendnet

Status
Tew-657brm
Vendor
CVE Published:
2 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-5352?

A vulnerability identified in the Trendnet TEW-657BRM router allows for OS command injection via the Edit function of the /setup.cgi file. This issue arises due to improper handling of the pcdb_list argument, enabling remote attackers to inject arbitrary commands. Notably, the affected product has been discontinued since June 23, 2011, and therefore, no further support or updates will be provided by the vendor, making it crucial for users to be aware of the potential security risks associated with using outdated hardware. Precautionary measures should be taken to mitigate exposure to this vulnerability.

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Affected Version(s)

TEW-657BRM 1.00.1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-5352 - Proof of Concept

References

https://vuldb.com/vuln/354705
vdb-entrytechnical-description
https://vuldb.com/vuln/354705/cti
signaturepermissions-required
https://vuldb.com/submit/781565
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

panda_0x1 (VulDB User)
VulDB CNA Team
JSON
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