CVE-2022-0910

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.04%
Vendor Advisory zyxel.com
Affected: Zyxel USG/ZyWALL series firmware
Affected: Zyxel USG FLEX series firmware
Affected: Zyxel ATP series firmware
Affected: Zyxel VPN series firmware
Published at:
Updated at:

References

Link Tags
https://www.zyxel.com/support/multiple-vulnerabilities-of-firewalls-AP-controllers-and-APs.shtml vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-0910?
CVE-2022-0910 has been scored as a medium severity vulnerability.
How to fix CVE-2022-0910?
To fix CVE-2022-0910, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-0910 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-0910 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-0910?
CVE-2022-0910 affects Zyxel USG/ZyWALL series firmware, Zyxel USG FLEX series firmware, Zyxel ATP series firmware, Zyxel VPN series firmware.
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