Is CVE-2026-10120 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-10120 being exploited in the wild.

How severe is CVE-2026-10120?

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

Is there a fix for CVE-2026-10120?

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-2026-10120 attacked?

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

Am I affected by CVE-2026-10120?

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-2026-10120: TRENDnet TEW-432BRP stack overflow in formSetFirewallRule

CVE-2026-10120 · 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 a specially crafted request to the firewall configuration page. Because this product reached its end-of-life in 2009, the manufacturer will not be releasing a fix, leaving affected devices permanently vulnerable.

Technologies: TRENDnet TEW-432BRP. Vendors: TRENDnet.

Quick answers

Is CVE-2026-10120 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-10120 being exploited in the wild.
How severe is CVE-2026-10120?: 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-2026-10120?: 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-2026-10120 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-10120?: 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 'boa' web server binary of the TRENDnet TEW-432BRP router (firmware version 3.10B20). The flaw is located within the 'formSetFirewallRule' function in the '/goform/formSetFirewallRule' handler. The 'firewall_name' POST parameter is copied into a local stack buffer without adequate bounds checking, allowing an attacker to overwrite the return address. While the attack requires network access and basic authentication, it can lead to arbitrary code execution or a persistent denial of service (device crash). The vendor has stated no patch will be issued as the product has been end-of-life (EOL) since 2009.

Affected products

TRENDnet TEW-432BRP 3.10B20

Timeline

2009: other: Product reached End-of-Life (EOL) status
2026-05-30: disclosed: Public disclosure of the vulnerability and PoC
2026-05-30: advisory

References

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