CVE-2023-4398

An integer overflow vulnerability in the source code of the QuickSec IPSec toolkit used in the VPN feature of the Zyxel ATP series firmware versions 4.32 through 5.37, USG FLEX series firmware versions 4.50 through 5.37, USG FLEX 50W series firmware versions 4.16 through 5.37, USG20W-VPN series...

CVE-2023-4398

An integer overflow vulnerability in the source code of the QuickSec IPSec toolkit used in the VPN feature of the Zyxel ATP series firmware versions 4.32 through 5.37, USG FLEX series firmware versions 4.50 through 5.37, USG FLEX 50W series firmware versions 4.16 through 5.37, USG20W-VPN series...

CVE-2023-4398

The CVE-2023-4398 issue is an integer overflow in the QuickSec IPSec toolkit used by Zyxel device VPN features (ATP, USG FLEX, USG FLEX 50(W), USG20(W)-VPN, and VPN series). An unauthenticated attacker can trigger DoS by sending a crafted IKE packet, as documented in the affected firmware ranges ...