Zyxel Multiple Products Use of Hard-Coded Credentials Vulnerability
Zyxel · Multiple Products
Date added (CISA)
2021-11-03
Remediation due
2022-05-03
Known ransomware use
Not indicated
Remediation priority
P2 — past CISA due date
Description
Zyxel firewalls (ATP, USG, VM) and AP Controllers (NXC2500 and NXC5500) contain a use of hard-coded credentials vulnerability in an undocumented account ("zyfwp") with an unchangeable password.