CVE-2026-14818
Last modified
CVE-2026-14818 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. A path traversal vulnerability in the CLI command used to execute configuration files in Zyxel ATP series firmware versions from V4.32 through V5.42 Patch 1, USG FLEX series firmware versions from V4.50 through V5.42 Patch 1, USG FLEX 50(W) series firmware versions from V4.16 through V5.42 Patch 1, and USG20(W)-VPN series firmware versions from V4.16 through V5.42 Patch 1 could allow an authenticated attacker with administrator privileges to execute a crafted malicious configuration file on an affected device.. EPSS estimates a 0.36% chance of exploitation in the next 30 days.
Description
A path traversal vulnerability in the CLI command used to execute configuration files in Zyxel ATP series firmware versions from V4.32 through V5.42 Patch 1, USG FLEX series firmware versions from V4.50 through V5.42 Patch 1, USG FLEX 50(W) series firmware versions from V4.16 through V5.42 Patch 1, and USG20(W)-VPN series firmware versions from V4.16 through V5.42 Patch 1 could allow an authenticated attacker with administrator privileges to execute a crafted malicious configuration file on an affected device.
Metrics
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Zyxel | ATP series firmware | from V4.32 through V5.42 Patch 1 |
| Zyxel | USG FLEX series firmware | from V4.50 through V5.42 Patch 1 |
| Zyxel | USG FLEX 50(W) series firmware | from V4.16 through V5.42 Patch 1 |
| Zyxel | USG20(W)-VPN series firmware | from V4.16 through V5.42 Patch 1 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-14818?
How severe is CVE-2026-14818?
How do I fix CVE-2026-14818?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-14808Prog Management System developed by PROG MIS has a Exposur…9.8
- CVE-2026-14809Prog Management System developed by PROG MIS has a SQL Injec…8.7
- CVE-2026-1481An out-of-band SQL injection vulnerability (OOB SQLi) has be…7.5
- CVE-2026-14812The Premium SEO WordPress plugin is malicious: it ships an u…10
- CVE-2026-14816The GDPR Framework By Data443 WordPress plugin before 2.4.0 …6.5
- CVE-2026-14817The Element Pack Addons for Elementor WordPress plugin befo…6.8
- CVE-2026-14819The Event Tickets and Registration WordPress plugin before 5…3.5
- CVE-2026-1482An out-of-band SQL injection vulnerability (OOB SQLi) has be…7.5
- CVE-2026-14820The Quiz and Survey Master (QSM) WordPress plugin before 11…5.3
- CVE-2026-14821The Quiz and Survey Master (QSM) WordPress plugin before 11…2.7
- CVE-2026-14822The Event Tickets and Registration WordPress plugin before 5…5.3
- CVE-2026-14823The Event Tickets and Registration WordPress plugin before 5…2.2
Are you affected by CVE-2026-14818?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST