Vulnerability · Published May 30, 2026 · Assigned by VulDB

CVE-2026-10120TRENDnet TEW-432BRP formSetFirewallRule 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 vulnerability was detected in TRENDnet TEW-432BRP 3.10B20. The affected element is the function formSetFirewallRule of the file /goform/formSetFirewallRule. The manipulation of the argument firewall_name results in stack-based buffer overflow. The attack can be executed remotely. The exploit is now public and may be used. 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-367297 | TRENDnet TEW-432BRP formSetFirewallRule stack-based overflow vdb-entry, technical-description
VDB-367297 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #814762 | TRENDnet TEW-432BRP 3.10B20 Stack-based Buffer Overflow third-party-advisory
https://github.com/wudipjq/my_vuln/blob/main/TRENDnet/vuln_7/7.md exploit