Description
A buffer overflow vulnerability in the “sdwan_iface_ipc” binary of Zyxel ATP series firmware versions 5.10 through 5.32, USG FLEX series firmware versions 5.00 through 5.32, USG FLEX 50(W) firmware versions 5.10 through 5.32, USG20(W)-VPN firmware versions 5.10 through 5.32, and VPN series firmware versions 5.00 through 5.35, which could allow a remote unauthenticated attacker to cause a core dump with a request error message on a vulnerable device by uploading a crafted configuration file.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Zyxel | ATP series firmware | 5.10 through 5.32 | — |
| Zyxel | USG FLEX series firmware | 5.00 through 5.32 | — |
| Zyxel | USG FLEX 50(W) firmware | 5.10 through 5.32 | — |
| Zyxel | USG20(W)-VPN firmware | 5.10 through 5.32 | — |
| Zyxel | VPN series firmware | 5.00 through 5.35 | — |
Advisories 1
- WID-SEC-2023-1070 Zyxel Firewalls: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 1, 2023