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 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

Several Zbtlink and MoreQuick router models, including L3_V2_8 , WE826-T2 , ZBT-7628 , and MQAC-7620 series, ship with a backdoor command-and-control implant named yunmgrd (SPEAKINGSTONE ). The implant communicates over an unauthenticated cleartext UDP channel to a hardcoded C2 server. A remote u...

VulnCheck KEV: CVE-2026-74232

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: Embedded Malicious Code

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...

PT-2026-82486

Name of the Vulnerable Software and Affected Versions Zbtlink L3 V2 8 version 3.0.0.4.528 Zbtlink WE826-T2 version 19.1101 Zbtlink ZBT-7628 version 1.0.0.2.007 Zbtlink ZBT-ZBT7621 version 1.0.0.3.001 MoreQuick MQAC-7620 version 1.0.0.2.000 MoreQuick MQAC-7620A version 1.0.0.2.000 MoreQuick...