CVE-2026-4172: trendnet tew-632brp_firmware

Vulnerability summary

CVE-2026-4172 is a high (CVSS 8.6) vulnerability in trendnet tew-632brp_firmware. EPSS estimates a 0.88% chance of exploitation in the next 30 days, higher than 58.7% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 15-03-2026
   PublishedVulnerability first disclosed.
2. 16-03-2026
   Last modifiedVulnerability information updated.

Description

A vulnerability was detected in TRENDnet TEW-632BRP 1.010B32. This affects an unknown part of the file /ping_response.cgi of the component HTTP POST Request Handler. The manipulation of the argument ping_ipaddr results in stack-based buffer overflow. The attack may be performed from remote. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

• 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).