CVE-2026-74232 Zbtlink MQWrt yunmgrd Cloud C2 Implant

Zbtlink L3V28 firmware 3.0.0.4.528, Zbtlink WE826-T2 firmware 19.1101, Zbtlink ZBT-7628 firmware 1.0.0.2.007, Zbtlink ZBT-ZBT7621 firmware 1.0.0.3.001, MoreQuick MQAC-7620, MQAC-7620A, MQAP-7620, MQAP-7620A, and MQAP-7628 firmware 1.0.0.2.000, AP522 firmware 1.0.0.2.014, AP7628 and HC5661A firmwa...

CVE-2026-74232

Multiple Zbtlink , MoreQuick , and other router/AP models (e.g., AP522, AP7628, HC5661A, APG721B, HK300, MAP-N10) ship a backdoor C2 implant (yunmgrd) reachable over an unauthenticated cleartext UDP channel to a hardcoded C2 server . A remote unauthenticated attacker on the network path can hijac...