VULNERABILITY INTELLIGENCE

CVE-2017-6884

CVSS score8.8 HIGH

EPSS probability34.61%

CISA KEVKnown exploited vulnerability

Published2017-04-06

Last modified2026-10-01

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Known Exploited Vulnerability

Zyxel EMG2926 Routers Command Injection Vulnerability

Vendor / product: Zyxel / EMG2926 Routers

Description

A command injection vulnerability was discovered on the Zyxel EMG2926 home router with firmware V1.00(AAQT.4)b8. The vulnerability is located in the diagnostic tools, specifically the nslookup function. A malicious user may exploit numerous vectors to execute arbitrary commands on the router, such as the ping_ip parameter to the expert/maintenance/diagnostic/nslookup URI.

Weakness classification

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Primary references

cve@mitre.org — Exploit, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory, VDB Entry
134c704f-9b21-4f2e-91b3-4a467353bcc0 — US Government Resource