Tenda F451 Router Hit by Remote Stack Buffer Overflow

The National Vulnerability Database (NVD) has reported a critical vulnerability, CVE-2026-6135, impacting the Tenda F451 1.0.0.7_cn_svn7958 router. This isn’t just a minor glitch; we’re talking about a stack-based buffer overflow stemming from improper handling of the page argument within the fromSetIpBind function of the /goform/SetIpBind file.

What makes this particularly nasty is its remote exploitability. An attacker doesn’t need physical access to the device; they can trigger this from afar. With a CVSS score of 8.8 (HIGH), the potential impact is significant, leading to high confidentiality, integrity, and availability concerns. The NVD notes that an exploit has already been publicly released, meaning this isn’t just theoretical – it’s actively weaponized. For anyone running this specific Tenda model, this is a five-alarm fire.