Stack-Based Buffer Overflow in TRENDnet TEW-432BRP Router
CVE-2026-10158

8.7HIGH

Key Information:

Vendor

Trendnet

Status
Tew-432brp
Vendor
CVE Published:
31 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-10158?

A security flaw has been identified in the TRENDnet TEW-432BRP router's formPortFw function. This vulnerability allows for a stack-based buffer overflow through manipulation of the server_name argument in the /goform/formPortFw file. As the flaw can be exploited remotely, it poses a significant risk. It is important to note that this product has been end-of-life (EOL) for 15 years, with the vendor stating they can no longer replicate or provide fixes for this vulnerability, thus leaving affected users without support or mitigation options.

Affected Version(s)

TEW-432BRP 3.10B20

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-2026-10158 - Proof of Concept

References

https://vuldb.com/vuln/367411
vdb-entrytechnical-description
https://vuldb.com/vuln/367411/cti
signaturepermissions-required
https://vuldb.com/submit/814768
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
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

pjq_Buoy (VulDB User)
VulDB CNA Team
.