Vulnerability Intelligence Report
Zyxel Multiple Firewalls Path Traversal Vulnerability
CVE-2024-11667
A directory traversal vulnerability in the web management interface of Zyxel ATP series firmware versions V5.00 through V5.38, USG FLEX series firmware versions V5.00 through V5.38, USG FLEX 50(W) series firmware versions V5.10 through V5.38, and USG20(W)-VPN series firmware versions V5.10 through V5.38 could allow an attacker to download or upload files via a crafted URL.
CISA KEV
SSVC: Active Exploitation
Automatable
Path Traversal
CVSS Base Score
7.5
HIGH
Exploitability:3.9
Impact Score:3.6
EPSS Probability:3.02%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-22 ↗CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Zyxel | ATP series firmware | versions V5.00 through V5.38 (affected) |
| Zyxel | USG FLEX series firmware | versions V5.00 through V5.38 (affected) |
| Zyxel | USG FLEX 50(W) series firmware | versions V5.10 through V5.38 (affected) |
| Zyxel | USG20(W)-VPN series firmware | versions V5.10 through V5.38 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
CISA KEV
ACTIVE IN CATALOG
EPSS Score
3.017%
GitHub Advisory
Vulnerability Class
Path Traversal
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Zyxel Corporation · Vendor · Taiwan |
| Reserved | 2024-11-25T07:15:56 |
| Published | 2024-11-27T09:39:41 |
| Last Updated | 2026-08-05T03:55:55 |
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