CVE intelligence and bounded remediation

CVE-2025-25523 — Trendnet Teg-40128 Firmware security vulnerability

Medium CVSS 5.9

Buffer overflow vulnerability in Trendnet TEG-40128 Web Smart Switch v1(1.00.023) due to the lack of length verification, which is related to the mobile access point setup operation. The attacker can directly control the remote target device by successfully exploiting this vulnerability.

Severity
Medium
CVSS
5.9 (3.1)
Published
2025-02-11
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-120

Affected products

  • trendnet / teg-40128_firmware / 1.00.023

Matched remediation archetype

Buffer bounds, memory safety, and memory corruption

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Check exposure

  • Identify affected native-code versions, build flags, architectures, parsers, codecs, drivers, and input paths in all shipped artifacts.
  • Determine whether untrusted data reaches the affected routine and the process privilege, sandbox, and network exposure.
  • Confirm statically linked, vendored, firmware, and platform-provided copies, not only package-manager records.

Remediate safely

  • Apply the maintained upstream correction or replace the affected component, then rebuild every dependent artifact from clean inputs.
  • Adopt bounds-checked interfaces, validated sizes and integer conversions, clear ownership, and memory-safe components where practical.
  • Enable supported compiler and runtime hardening and add sanitized tests and fuzz regression seeds derived from non-weaponized fixtures.

Authoritative sources

Complete CVE record and remediation plan

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