Description
A buffer overflow vulnerability in the CGI program of Zyxel ATP series firmware versions from V4.32 through V5.38, USG FLEX series firmware versions from V4.50 through V5.38, USG FLEX 50(W) series firmware versions from V4.16 through V5.38, and USG20(W)-VPN series firmware versions from V4.16 through V5.38 could allow an authenticated attacker with administrator privileges to cause denial of service (DoS) conditions by sending a crafted HTTP request to a vulnerable device.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Zyxel | ATP series firmware | versions V4.32 through V5.38 | — |
| Zyxel | USG FLEX series firmware | versions V4.50 through V5.38 | — |
| Zyxel | USG FLEX 50(W) series firmware | versions V4.16 through V5.38 | — |
| Zyxel | USG20(W)-VPN series firmware | versions V4.16 through V5.38 | — |
Advisories 2
- WID-SEC-2024-2031 Zyxel Firewall: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 20, 2024
- NCSC-2024-0357 Kwetsbaarheden verholpen in Zyxel Flex en USG Firewalls NCSC-NL (Netherlands) · Sep 3, 2024