Vulnerability · Published May 31, 2026 · Assigned by VulDB

CVE-2026-10158TRENDnet TEW-432BRP formPortFw stack-based overflow

High 8.8

In plain English

A high-severity stack buffer overflow in TEW-432BRP from TRENDnet. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.5%top 59.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A security flaw has been discovered in TRENDnet TEW-432BRP 3.10B20. Affected is the function formPortFw of the file /goform/formPortFw. The manipulation of the argument server_name results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks. The vendor explains: "This product has been EOL for 15 years (since 2009). As the item has been EOL for such a long time, we are not able to replicate or fix any vulnerabilities." This vulnerability only affects products that are no longer supported by the maintainer.

Affected products (as reported)

Vendor	Product	Versions
TRENDnet	TEW-432BRP	3.10B20

Weakness: CWE-121, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

References

VDB-367411 | TRENDnet TEW-432BRP formPortFw stack-based overflow vdb-entry, technical-description
VDB-367411 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #814768 | TRENDnet TEW-432BRP 3.10B20 Stack-based Buffer Overflow third-party-advisory
https://github.com/wudipjq/my_vuln/blob/main/TRENDnet/vuln_11/11.md exploit