Description
An improper input validation vulnerability in the “Quagga” package 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 access configuration files on 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