Is CVE-2026-10123 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-10123 being exploited in the wild.

How severe is CVE-2026-10123?

High severity, with a CVSS score of 8.8, published 30 May 2026.

Is there a fix for CVE-2026-10123?

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-2026-10123 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-10123?

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.

CVE-2026-10123: TRENDnet TEW-432BRP stack overflow in formSetDomainFilter

CVE-2026-10123 · Severity: high · CVSS 8.8 · Published 2026-05-30

A vulnerability exists in the TRENDnet TEW-432BRP wireless router, a device used to provide internet connectivity and network security for small offices and homes. An attacker can exploit this flaw to crash the router or potentially take full control of the device by sending specially crafted web requests. 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. Vendors: TRENDnet.

Quick answers

Is CVE-2026-10123 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-10123 being exploited in the wild.
How severe is CVE-2026-10123?: High severity, with a CVSS score of 8.8, published 30 May 2026.
Which products and versions are affected?: TRENDnet TEW-432BRP 3.10B20.
Is there a fix for CVE-2026-10123?: 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-2026-10123 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-10123?: 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 exists in the 'formSetDomainFilter' function within the '/goform/formSetDomainFilter' endpoint of the TRENDnet TEW-432BRP router (firmware 3.10B20). The issue stems from a lack of bounds checking when copying user-supplied input from parameters such as 'blocked_domain_list' into local stack variables. A remote attacker with low privileges (authenticated access to the web interface) can exploit this by sending an oversized string, leading to a crash of the 'boa' web server or arbitrary code execution. The vendor has stated that no fix will be provided as the product has been end-of-life (EOL) since 2009.

Affected products

TRENDnet TEW-432BRP 3.10B20

Timeline

2026-05-30: disclosed: Vulnerability details and PoC published on GitHub.
2026-05-30: advisory: CVE-2026-10123 published.

References

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