# CVE-2026-10181: TRENDnet TEW-432BRP stack overflow in formSysCmd

Source: https://junglewise.ai/threats/cve-2026-10181-trendnet-tew-432brp-stack-overflow-in-formsyscmd  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-31. Updated: 2026-05-31  
License: CC BY 4.0 with a link back

CVE-2026-10181 · Severity: high · CVSS 8.8 · Published 2026-05-31

A security vulnerability exists in the TRENDnet TEW-432BRP wireless router, a device used to provide internet connectivity for home and small office networks. An attacker can exploit this flaw to take control of the device, potentially leading to a complete service outage or unauthorized access to network traffic. Because this product reached its end-of-life in 2009, the manufacturer will not be releasing a security patch, and users are advised to replace the hardware.

Technologies: [TRENDnet TEW-432BRP](https://junglewise.ai/threats/technologies/tew-432brp). Vendors: [TRENDnet](https://junglewise.ai/threats/vendors/trendnet).

## Quick answers

**Is CVE-2026-10181 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-10181 being exploited in the wild.

**How severe is CVE-2026-10181?** High severity, with a CVSS score of 8.8, published 31 May 2026.

**Which products and versions are affected?** TRENDnet TEW-432BRP 3.10B20.

**Is there a fix for CVE-2026-10181?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-10181 attacked?** It is attacked over the network, in device firmware.

**Am I affected by CVE-2026-10181?** Check whether you run TRENDnet TEW-432BRP at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A stack-based buffer overflow vulnerability (CWE-121) exists in the TRENDnet TEW-432BRP firmware version 3.10B20. The flaw is located within the 'formSysCmd' function in the '/goform/formSysCmd' file, where improper validation of the 'submit-url' argument allows for memory corruption. A remote attacker with low privileges can exploit this by sending a specially crafted request to the web interface. Successful exploitation can lead to arbitrary code execution or a denial-of-service condition. The vendor has stated that no patch will be issued as the product has been end-of-life (EOL) since 2009.

## Affected products

- TRENDnet TEW-432BRP 3.10B20

## Timeline

- 2026-05-31: disclosed: Vulnerability published via VulDB and NVD

## References

- [https://github.com/wudipjq/my_vuln/blob/main/TRENDnet/vuln_18/18.md](https://github.com/wudipjq/my_vuln/blob/main/TRENDnet/vuln_18/18.md)
- [https://vuldb.com/cve/CVE-2026-10181](https://vuldb.com/cve/CVE-2026-10181)
- [https://vuldb.com/submit/814775](https://vuldb.com/submit/814775)
- [https://vuldb.com/vuln/367462](https://vuldb.com/vuln/367462)
- [https://vuldb.com/vuln/367462/cti](https://vuldb.com/vuln/367462/cti)

## Related threats

- [TRENDnet TEW-432BRP stack buffer overflow in formTcpipSetup](https://junglewise.ai/threats/cve-2026-109157-a-vulnerability-was-found-in-trendnet-tew-432brp-3-10b20)
- [TRENDnet TEW-432BRP stack overflow in formWlanSetup](https://junglewise.ai/threats/cve-2026-10183-trendnet-tew-432brp-stack-overflow-in-formwlansetup)
- [TRENDnet TEW-432BRP command injection in formWlanSetup](https://junglewise.ai/threats/cve-2026-10182-trendnet-tew-432brp-command-injection-in-formwlansetup)
- [TRENDnet TEW-432BRP command injection in formSysCmd](https://junglewise.ai/threats/cve-2026-10180-trendnet-tew-432brp-command-injection-in-formsyscmd)
- [TRENDnet TEW-432BRP stack overflow in formSetWlanEncrypt](https://junglewise.ai/threats/cve-2026-10179-trendnet-tew-432brp-stack-overflow-in-formsetwlanencrypt)