Vulnerabilities > Zyxel > Zywall 1100 Firmware > Critical
| DATE | CVE | VULNERABILITY TITLE | RISK |
|---|---|---|---|
| 2022-03-28 | CVE-2022-0342 | Improper Authentication vulnerability in Zyxel products An authentication bypass vulnerability in the CGI program of Zyxel USG/ZyWALL series firmware versions 4.20 through 4.70, USG FLEX series firmware versions 4.50 through 5.20, ATP series firmware versions 4.32 through 5.20, VPN series firmware versions 4.30 through 5.20, and NSG series firmware versions V1.20 through V1.33 Patch 4, which could allow an attacker to bypass the web authentication and obtain administrative access of the device. | 9.8 |
| 2021-07-02 | CVE-2021-35029 | Improper Authentication vulnerability in Zyxel products 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. | 9.8 |
| 2019-06-27 | CVE-2019-12583 | Forced Browsing vulnerability in Zyxel products Missing Access Control in the "Free Time" component of several Zyxel UAG, USG, and ZyWall devices allows a remote attacker to generate guest accounts by directly accessing the account generator. | 9.1 |