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.
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
Name | Vendor | Start Version | End Version |
---|---|---|---|
Usg40_firmware | Zyxel | 4.20 (including) | 4.71 (excluding) |