CVE-2022-0910

Summary

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.

Affected Software

VendorProductVersion RangeStatus
ZyxelUSG/ZyWALL series firmware4.32 through 4.71affected
ZyxelUSG FLEX series firmware4.50 through 5.21affected
ZyxelATP series firmware4.32 through 5.21affected
ZyxelVPN series firmware4.32 through 5.21affected

Weaknesses

  • CWE-287: CWE-287: Improper Authentication

ADP Enrichment

CVE Program Container

Additional References

References