Vulnerability Intelligence Report
CVE-2022-0342
An authentication bypass vulnerability in the CGI program of Zyxel USG/ZyWALL series firmware versions 4.20 through 4.70, USG FLEX series firmware versions 4.50 through 5.20, ATP series firmware versions 4.32 through 5.20, VPN series firmware versions 4.30 through 5.20, and NSG series firmware versions V1.20 through V1.33 Patch 4, which could allow an attacker to bypass the web authentication and obtain administrative access of the device.
Nuclei Template
CVSS Base Score
9.8
CRITICAL
Exploitability:3.9
Impact Score:5.9
EPSS Probability:84.84%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-287 ↗CWE-287: Improper Authentication
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Zyxel | USG/ZyWALL series firmware | 4.20 through 4.70 (affected) |
| Zyxel | USG FLEX series firmware | 4.50 through 5.20 (affected) |
| Zyxel | ATP series firmware | 4.32 through 5.20 (affected) |
| Zyxel | VPN series firmware | 4.30 through 5.20 (affected) |
| Zyxel | NSG series firmware | 1.20 through 1.33 Patch 4 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Zyxel Corporation · Vendor · Taiwan |
| Reserved | 2022-01-24T00:00:00 |
| Published | 2022-03-28T12:05:11 |
| Last Updated | 2024-08-02T23:25:40 |
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