Vulnerability · Published Oct 13, 2026 · Assigned by VulDB

CVE-2026-109157TRENDnet TEW-432BRP formTcpipSetup stack-based overflow

Critical 9.9

In plain English

A critical-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 0.6% (higher than 49% of all known vulnerabilities).

Severity (CVSS 3.1)9.9Critical

Exploit odds (30 days)0.6%top 51.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability was found in TRENDnet TEW-432BRP 3.10B20. Affected by this vulnerability is the function formTcpipSetup of the file /goform/formTcpipSetup. Performing a manipulation of the argument Name results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been made public and could be used. The vendor confirms: "As this router was EOL'd in 2011, we have no way of testing if such vulnerability exists. We will notify our customers of a potential vulnerability on this product." 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:C/C:H/I:H/A:H/E:P/RL:X/RC:R

References

VDB-416890 | TRENDnet TEW-432BRP formTcpipSetup stack-based overflow vdb-entry, technical-description
VDB-416890 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
CVE-2026-109157 | CVE Analysis and Report third-party-advisory
Submit #979590 | TRENDnet TEW-432BRP 3.10B20 Stack-based Buffer Overflow third-party-advisory
https://github.com/wudipjq/my_vuln/blob/main/TRENDnet/vuln_21/21.md exploit