What is CVE-2018-14893?

CVE-2018-14893 is a high-severity vulnerability in Zyxel Nsa325 V2, classified under Command Injection. CVSS score: 8.8/10. Published 2018-11-27.

How severe is CVE-2018-14893?

High severity. CVSS v3 base score is 8.8 out of 10.

RCE in Zyxel Nsa325 V2

CVE-2018-14893

A system command injection vulnerability in zyshclient in ZyXEL NSA325 V2 version 4.81 allows attackers to execute system commands via the web application API.

Vulnerability class: Command Injection (OS Command Injection)

Published 2018-11-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.034 (88.6th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 88.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.034 · newest: 0.034 · change: 0.000

Affected products

Zyxel Nsa325 V2
Zyxel Nsa325 V2 Firmware — versions 4.81

Weakness classification (CWE)

References

blog.securityevaluators.com/ise-labs-finds-vulnerabilities-in-zyxel-nsa325-9454… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-14893?: CVE-2018-14893 is a high-severity vulnerability in Zyxel Nsa325 V2, classified under Command Injection. CVSS score: 8.8/10. Published 2018-11-27.
How severe is CVE-2018-14893?: High severity. CVSS v3 base score is 8.8 out of 10.