CVE-2026-10120: trendnet tew-432brp

Vulnerability summary

CVE-2026-10120 is a high (CVSS 9.0) vulnerability in trendnet tew-432brp. EPSS estimates a 0.46% chance of exploitation in the next 30 days, higher than 39% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 30-05-2026
   PublishedVulnerability first disclosed.
2. 01-06-2026
   Last modifiedVulnerability information updated.

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.

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
• CWE-121Stack-based Buffer OverflowA stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).