Is CVE-2026-10158 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-10158 being exploited in the wild.

How severe is CVE-2026-10158?

High severity, with a CVSS score of 8.8, published 31 May 2026.

Is there a fix for CVE-2026-10158?

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-2026-10158 attacked?

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

Am I affected by CVE-2026-10158?

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-2026-10158: TRENDnet TEW-432BRP stack overflow in formPortFw

CVE-2026-10158 · 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 in home and small office environments. 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 port forwarding configuration page. Because this product reached its end-of-life (EOL) status in 2009, the manufacturer will not be providing a security patch, leaving affected devices permanently vulnerable.

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

Quick answers

Is CVE-2026-10158 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-10158 being exploited in the wild.
How severe is CVE-2026-10158?: 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-2026-10158?: 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-2026-10158 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-10158?: 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 exists in the 'formPortFw' function within the '/goform/formPortFw' component of the TRENDnet TEW-432BRP firmware (version 3.10B20). The vulnerability is caused by a lack of bounds checking on the 'server_name' POST parameter before it is copied into a local stack buffer. A remote attacker with low privileges (authenticated access to the web interface) can exploit this by sending an overly long string, overwriting the function's return address to achieve arbitrary code execution or a device crash. Public exploit code (PoC) is available. The vendor has stated no fix will be released as the product has been EOL since 2009.

Affected products

TRENDnet TEW-432BRP 3.10B20

Timeline

2026-05-31: advisory: NVD publication date
2009: other: Product reached End-of-Life (EOL) status

References

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