Improper input validation in Zyxel Atp100
CVE-2023-22916
The configuration parser of Zyxel ATP series firmware versions 5.10 through 5.35, USG FLEX series firmware versions 5.00 through 5.35, USG FLEX 50(W) firmware versions 5.10 through 5.35, USG20(W)-VPN firmware versions 5.10 through 5.35, and VPN series firmware versions 5.00 through 5.35, which fails to properly sanitize user input. A remote unauthenticated attacker could leverage the vulnerability to modify device configuration data, resulting in DoS conditions on an affected device if the attacker could trick an authorized administrator to switch the management mode to the cloud mode.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.007 (50.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H.
Affected products
Weakness classification (CWE)
References
- security@zyxel.com.tw (Vendor Advisory)
Frequently asked questions
- What is CVE-2023-22916?
- CVE-2023-22916 is a high-severity vulnerability in Zyxel Atp100, classified under Improper Input Validation. CVSS score: 8.1/10. Published 2023-04-24.
- How severe is CVE-2023-22916?
- High severity. CVSS v3 base score is 8.1 out of 10.