Buffer Overflow Vulnerability in TRENDnet TEW-432BRP Router
CVE-2026-10120

8.7HIGH

Key Information:

Vendor

Trendnet

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-10120?

A stack-based buffer overflow vulnerability has been identified in the TRENDnet TEW-432BRP router within the 'formSetFirewallRule' function of the '/goform/formSetFirewallRule' file. The issue arises from improper handling of the 'firewall_name' argument, allowing for remote manipulation and potential exploitation. As this product has reached its end-of-life status since 2009, TRENDnet has indicated that they are unable to replicate or address any vulnerabilities, putting users of the impacted version at risk of exploitation.

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-2026-10120 - Proof of Concept

References

https://vuldb.com/vuln/367297
vdb-entrytechnical-description
https://vuldb.com/vuln/367297/cti
signaturepermissions-required
https://vuldb.com/submit/814762
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

pjqwudi_Buoy (VulDB User)
VulDB CNA Team
.