USG/ZyWALL series firmware vulnerabilities
4 known vulnerabilities in USG/ZyWALL series firmware from Zyxel. 4 are rated high or critical. Each entry lists the affected versions and the release that fixes it, where the vendor has published one.
Latest first
- 7.8 High severity
USG FLEX 100(W) firmware: Improper Privilege Management
A privilege escalation vulnerability was identified in the CLI command of Zyxel USG FLEX 100(W) firmware versions 4.50 through 5.30, USG FLEX 200 firmware versions 4.50 through 5.30, USG FLEX 500 firmware versions 4.50 through 5.30, USG FLEX 700 firmware versi
- 7.8 High severity
USG/ZyWALL series firmware: Improper Neutralization of Special Elements used in an OS Command
A argument injection vulnerability in the 'packet-trace' CLI command of Zyxel USG/ZyWALL series firmware versions 4.09 through 4.71, USG FLEX series firmware versions 4.50 through 5.21, ATP series firmware versions 4.32 through 5.21, VPN series firmware versio
- 7.8 High severity
Multiple improper input validation flaws were identified in some CLI commands of Zyxel…
Multiple improper input validation flaws were identified in some CLI commands of Zyxel USG/ZyWALL series firmware versions 4.09 through 4.71, USG FLEX series firmware versions 4.50 through 5.21, ATP series firmware versions 4.32 through 5.21, VPN series firmwa
- 9.8 Critical severity
USG/ZyWALL series firmware: Improper Authentication
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 thr