VULNERABILITY INTELLIGENCE

CVE-2023-28767

CVSS score8.8 HIGH
EPSS probability0.40%
CISA KEVNot currently listed
Published2023-07-17
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

The configuration parser fails to sanitize user-controlled input in the Zyxel ATP series firmware versions 5.10 through 5.36, USG FLEX series firmware versions 5.00 through 5.36,  USG FLEX 50(W) series firmware versions 5.10 through 5.36, USG20(W)-VPN series firmware versions 5.10 through 5.36, and VPN series firmware versions 5.00 through 5.36. An unauthenticated, LAN-based attacker could leverage the vulnerability to inject some operating system (OS) commands into the device configuration data on an affected device when the cloud management mode is enabled.

Weakness classification

  • security@zyxel.com.tw: CWE-78
  • nvd@nist.gov: CWE-78

Primary references