CyberRota Analysis
This is a high severity vulnerability with a CVSS score of 7.5. Exploitation may require the attacker to be authenticated. It may lead to a denial-of-service condition.
CVE
CVE-2023-4398
Severity
HIGH
CVSS
7.5
EPSS
0.88%
Original NVD Description
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 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 unauthenticated attacker to cause denial-of-service (DoS) conditions on an affected device by sending a crafted IKE packet.
Related CVEs
Other vulnerabilities affecting the same vendor(s)