CVE-2023-33011

CVSS 3.1 Score 8.8 of 10 (high)

Details

Published Jul 17, 2023
Updated: Jul 26, 2023
CWE ID 134

Summary

CVE-2023-33011 is a format string vulnerability affecting various Zyxel ATP, USG FLEX, USG FLEX 50(W), and VPN firmware versions. This issue, present in firmware releases 5.10 through 5.36 Patch 2, can be exploited by unauthenticated attackers on the LAN. By manipulating a PPPoE configuration, an attacker can take advantage of this weakness and execute certain OS commands on the affected device. This can lead to potential security risks and unauthorized system access when the cloud management mode is enabled.

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Affected Products

  • Zyxel Usg Flex 200 Firmware
  • Zyxel Usg Flex 500 Firmware
  • Zyxel Usg Flex 100 Firmware
  • Zyxel Usg Flex 100w Firmware
  • Zyxel Usg Flex 700 Firmware

Affected Vendors

  • ZyXEL

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