Zyxel: >> Usg1900 Firmware >> 4.60 Security Vulnerabilities
An authentication bypasss vulnerability in the web-based management interface of Zyxel USG/Zywall series firmware versions 4.35 through 4.64 and USG Flex, ATP, and VPN series firmware versions 4.35 through 5.01, which could allow a remote attacker to execute arbitrary commands on an affected device.
CVSS Score
9.8
EPSS Score
0.007
Published
2021-07-02
CVE-2020-29583
Firmware version 4.60 of Zyxel USG devices contains an undocumented account (zyfwp) with an unchangeable password. The password for this account can be found in cleartext in the firmware. This account can be used by someone to login to the ssh server or web interface with admin privileges.
Known exploited
CVSS Score
9.8
EPSS Score
0.942
Published
2020-12-22