Description
An improper privilege management vulnerability in the ZySH of the Zyxel ATP series firmware versions 4.32 through 5.37, USG FLEX series firmware versions 4.50 through 5.37, USG FLEX 50(W) series firmware versions 4.16 through 5.37, USG20(W)-VPN series firmware versions 4.16 through 5.37, and VPN series firmware versions 4.30 through 5.37, could allow an authenticated local attacker to modify the URL of the registration page in the web GUI of an affected device.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Zyxel | ATP series firmware | versions 4.32 through 5.37 | — |
| Zyxel | USG FLEX series firmware | versions 4.50 through 5.37 | — |
| Zyxel | USG FLEX 50(W) series firmware | versions 4.16 through 5.37 | — |
| Zyxel | USG20(W)-VPN series firmware | versions 4.16 through 5.37 | — |
| Zyxel | VPN series firmware | versions 4.30 through 5.37 | — |
Advisories 1
- WID-SEC-2023-3017 Zyxel Firewall: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 27, 2023