VULNERABILITY INTELLIGENCE

CVE-2022-0910

CVSS score6.5 MEDIUM
EPSS probability0.73%
CISA KEVNot currently listed
Published2022-05-24
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Description

A downgrade from two-factor authentication to one-factor authentication vulnerability in the CGI program of Zyxel USG/ZyWALL series firmware versions 4.32 through 4.71, USG FLEX series firmware versions 4.50 through 5.21, ATP series firmware versions 4.32 through 5.21, and VPN series firmware versions 4.32 through 5.21, that could allow an authenticated attacker to bypass the second authentication phase to connect the IPsec VPN server even though the two-factor authentication (2FA) was enabled.

Weakness classification

  • security@zyxel.com.tw: CWE-287
  • nvd@nist.gov: CWE-287

Primary references