description: 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.
problem types: CWE-287: Improper Authentication
affected:
{
product: USG/Zywall series Firmware
vendor: Zyxel
versions:
status: affected, version: 4.35 through 4.64
}
{
product: USG FLEX series Firmware
vendor: Zyxel
versions:
status: affected, version: 4.35 through 5.01
}
{
product: ATP series Firmware
vendor: Zyxel
versions:
status: affected, version: 4.35 through 5.01
}
{
product: VPN series Firmware
vendor: Zyxel
versions:
status: affected, version: 4.35 through 5.01
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 9.8
baseSeverity: CRITICAL
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
version: 3.1
]