Buffer Overflow Vulnerability in Zyxel ATP, USG FLEX, USG FLEX 50(W), USG20(W)-VPN, and VPN Series Firmware Versions 4.32-5.37: Denial-of-Service Exploit via System Log Dump

CVE-2023-37926 · MEDIUM Severity

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

A buffer overflow vulnerability in 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 cause denial-of-service (DoS) conditions by executing the CLI command to dump system logs on an affected device.

Learn more about our Web Application Penetration Testing UK.