A format string vulnerability in a function of the IPSec VPN feature in Zyxel ATP series firmware versions from 4.32 up to and including 5.37 Patch 1, USG FLEX series firmware versions from 4.50 up to and including 5.37 Patch 1, USG FLEX 50(W) series firmware versions from 4.16 up to and including 5.37 Patch 1, and USG20(W)-VPN series firmware versions from 4.16 up to and including 5.37 Patch 1 could allow an malicious user to achieve unauthorized remote code execution by sending a sequence of specially crafted payloads containing an invalid pointer; however, such an attack would require detailed knowledge of an affected device’s memory layout and configuration.
Vulmon