Cisco SD-WAN CVSS 10.0 Zero-Day: Your Network’s Been Open Since 2023

Cisco SD-WAN CVSS 10.0 Zero-Day: Your Network’s Been Open Since 2023

Oh, for fuck's sake. Here we go again. So Cisco drops a zero-day advisory last week — CVE-2026-20127, CVSS score of 10.0. That's a perfect score, for those keeping track at home. A clean, beautiful, maximum-severity authentication bypass in the Cisco Catalyst SD-WAN Controller (that's the thing formerly known as vSmart, because Cisco loves renaming … Continue reading Cisco SD-WAN CVSS 10.0 Zero-Day: Your Network’s Been Open Since 2023