CVE-2026-10162
Deferred Deferred - Pending Action
Stack-Based Buffer Overflow in TRENDnet TEW-432BRP

Publication date: 2026-05-31

Last updated on: 2026-05-31

Assigner: VulDB

Description
A flaw has been found in TRENDnet TEW-432BRP 3.10B20. This vulnerability affects the function formSetPassword of the file /goform/formSetPassword. Executing a manipulation of the argument webpage can lead to stack-based buffer overflow. The attack may be launched remotely. The exploit has been published and may be used. The vendor explains: "This product has been EOL for 15 years (since 2009). As the item has been EOL for such a long time, we are not able to replicate or fix any vulnerabilities." This vulnerability only affects products that are no longer supported by the maintainer.
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Meta Information
Published
2026-05-31
Last Modified
2026-05-31
Generated
2026-06-20
AI Q&A
2026-06-01
EPSS Evaluated
2026-06-19
NVD
CVE-2026-10162
EUVD
EUVD-2026-33481
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
trendnet tew-432brp 3.10b20
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-119 The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
CWE-121 A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
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Compliance Impact

The provided information does not specify any direct impact of this vulnerability on compliance with common standards and regulations such as GDPR or HIPAA.

Executive Summary

CVE-2026-10162 is a stack-based buffer overflow vulnerability found in the TRENDnet TEW-432BRP router, specifically in the formSetPassword function accessed via the /goform/formSetPassword endpoint.

The vulnerability occurs because the input parameter 'webpage' is copied directly to a local stack variable without proper validation, allowing an attacker to overwrite the function's return address.

By sending a specially crafted POST request with a long string (for example, 870 'a' characters), an attacker can cause the router to crash and become unresponsive.

This issue arises from insufficient input sanitization in the password management form, and a proof-of-concept exploit has been published demonstrating the attack.

Impact Analysis

This vulnerability can cause the affected TRENDnet router to crash and become unresponsive, leading to denial of service.

Since the router fails to provide services correctly after exploitation, network connectivity and security functions relying on the device may be disrupted.

Because the product is end-of-life and no longer supported, there is no official fix available, increasing the risk of exploitation.

Detection Guidance

This vulnerability can be detected by sending a specially crafted POST request to the '/goform/formSetPassword' endpoint with a long string (for example, 870 'a' characters) in the 'webpage' parameter. If the device crashes or becomes unresponsive, it indicates the presence of the vulnerability.

A detection command example using curl would be:

  • curl -X POST -d "webpage=$(python3 -c 'print("a"*870)')" http://[target_ip]/goform/formSetPassword

If the device crashes or stops responding after this request, it is likely vulnerable to CVE-2026-10162.

Mitigation Strategies

Since the affected product TRENDnet TEW-432BRP 3.10B20 has been end-of-life (EOL) for 15 years and the vendor does not provide fixes, immediate mitigation steps include:

  • Remove or isolate the vulnerable device from the network to prevent remote exploitation.
  • Disable remote management or restrict access to the '/goform/formSetPassword' endpoint if possible.
  • Replace the device with a supported and updated router model to ensure security patches and ongoing support.

Proper input sanitization is recommended but cannot be applied by end users due to lack of vendor support.

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