6.5

CVE-2022-0910

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.

Data is provided by the National Vulnerability Database (NVD)
Zyxel ≫ Vpn100 Firmware Version >= 4.32 <= 5.21
   Zyxel ≫ Vpn100 Version-
Zyxel ≫ Vpn1000 Firmware Version >= 4.32 <= 5.21
   Zyxel ≫ Vpn1000 Version-
Zyxel ≫ Vpn300 Firmware Version >= 4.32 <= 5.21
   Zyxel ≫ Vpn300 Version-
Zyxel ≫ Vpn50 Firmware Version >= 4.32 <= 5.21
   Zyxel ≫ Vpn50 Version-
Zyxel ≫ Atp100 Firmware Version >= 4.32 <= 5.21
   Zyxel ≫ Atp100 Version-
Zyxel ≫ Atp100w Firmware Version >= 4.32 <= 5.21
   Zyxel ≫ Atp100w Version-
Zyxel ≫ Atp200 Firmware Version >= 4.32 <= 5.21
   Zyxel ≫ Atp200 Version-
Zyxel ≫ Atp500 Firmware Version >= 4.32 <= 5.21
   Zyxel ≫ Atp500 Version-
Zyxel ≫ Atp700 Firmware Version >= 4.32 <= 5.21
   Zyxel ≫ Atp700 Version-
Zyxel ≫ Atp800 Firmware Version >= 4.32 <= 5.21
   Zyxel ≫ Atp800 Version-
Zyxel ≫ Usg 110 Firmware Version >= 4.32 <= 4.71
   Zyxel ≫ Usg 110 Version-
Zyxel ≫ Usg 1100 Firmware Version >= 4.32 <= 4.71
   Zyxel ≫ Usg 1100 Version-
Zyxel ≫ Usg 1900 Firmware Version >= 4.32 <= 4.71
   Zyxel ≫ Usg 1900 Version-
Zyxel ≫ Usg 20w Firmware Version >= 4.32 <= 4.71
   Zyxel ≫ Usg 20w Version-
Zyxel ≫ Usg 20w-vpn Firmware Version >= 4.32 <= 4.71
   Zyxel ≫ Usg 20w-vpn Version-
Zyxel ≫ Usg 2200-vpn Firmware Version >= 4.32 <= 4.71
   Zyxel ≫ Usg 2200-vpn Version-
Zyxel ≫ Usg 310 Firmware Version >= 4.32 <= 4.71
   Zyxel ≫ Usg 310 Version-
Zyxel ≫ Usg 40 Firmware Version >= 4.32 <= 4.71
   Zyxel ≫ Usg 40 Version-
Zyxel ≫ Usg 40w Firmware Version >= 4.32 <= 4.71
   Zyxel ≫ Usg 40w Version-
Zyxel ≫ Usg 60 Firmware Version >= 4.32 <= 4.71
   Zyxel ≫ Usg 60 Version-
Zyxel ≫ Usg 60w Firmware Version >= 4.32 <= 4.71
   Zyxel ≫ Usg 60w Version-
Zyxel ≫ Usg Flex 100 Firmware Version >= 4.50 <= 5.21
   Zyxel ≫ Usg Flex 100 Version-
Zyxel ≫ Usg Flex 100w Firmware Version >= 4.50 <= 5.21
   Zyxel ≫ Usg Flex 100w Version-
Zyxel ≫ Usg Flex 200 Firmware Version >= 4.50 <= 5.21
   Zyxel ≫ Usg Flex 200 Version-
Zyxel ≫ Usg Flex 500 Firmware Version >= 4.50 <= 5.21
   Zyxel ≫ Usg Flex 500 Version-
Zyxel ≫ Usg Flex 700 Firmware Version >= 4.50 <= 5.21
   Zyxel ≫ Usg Flex 700 Version-
Zyxel ≫ Usg200 Firmware Version >= 4.32 <= 4.71
   Zyxel ≫ Usg200 Version-
Zyxel ≫ Usg20 Firmware Version >= 4.32 <= 4.71
   Zyxel ≫ Usg20 Version-
Zyxel ≫ Usg210 Firmware Version >= 4.32 <= 4.71
   Zyxel ≫ Usg210 Version-
Zyxel ≫ Usg2200 Firmware Version >= 4.32 <= 4.71
   Zyxel ≫ Usg2200 Version-
Zyxel ≫ Usg300 Firmware Version >= 4.32 <= 4.71
   Zyxel ≫ Usg300 Version-
Zyxel ≫ Usg310 Firmware Version >= 4.32 <= 4.71
   Zyxel ≫ Usg310 Version-
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.15% 0.364
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 6.5 2.8 3.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
nvd@nist.gov 4 8 2.9
AV:N/AC:L/Au:S/C:N/I:P/A:N
security@zyxel.com.tw 6.5 2.8 3.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CWE-287 Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.