CVE-2026-10159
Stack-Based Buffer Overflow in TRENDnet TEW-432BRP
Publication date: 2026-05-31
Last updated on: 2026-05-31
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| trendnet | tew-432brp | 3.10b20 |
Helpful Resources
Exploitability
| 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). |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
CVE-2026-10159 is a buffer overflow vulnerability in the TRENDnet TEW-432BRP device, specifically in the formSysLog function accessed via the /goform/formSysLog 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.
An attacker can exploit this by sending a specially crafted POST request with a long string of characters, causing the device to crash and become unresponsive.
This issue is due to insufficient input sanitization in the web interface handling of the device.
How can this vulnerability impact me? :
Exploitation of this vulnerability can cause the affected TRENDnet device to crash and become unresponsive, leading to denial of service.
Since the attacker can overwrite the function's return address, it may also allow for remote code execution or other malicious actions, compromising the device's integrity and availability.
Because the device is no longer supported or patched, the risk remains unmitigated.
How can this vulnerability be detected on my network or system? Can you suggest some commands?
This vulnerability can be detected by sending a specially crafted POST request with a long string of characters to the '/goform/formSysLog' endpoint of the TRENDnet TEW-432BRP device. If the device crashes or becomes unresponsive, it indicates the presence of the buffer overflow vulnerability.
- Use a command like: curl -X POST -d "webpage=aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" http://<device-ip>/goform/formSysLog
- Monitor the device for crashes or service failures after sending the request.
What immediate steps should I take to mitigate this vulnerability?
Since the affected TRENDnet TEW-432BRP device has been end-of-life for 15 years and no patches or fixes are available, immediate mitigation steps include discontinuing use of the vulnerable device or isolating it from untrusted networks to prevent remote exploitation.
Additionally, monitor network traffic for suspicious POST requests to the '/goform/formSysLog' endpoint and consider implementing network-level protections such as firewall rules to block such requests.