CVE-2017-6884

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.

Score

CVSS 3.1 8.8 High

Status

Analyzed - cve@mitre.org

Published

2017-04-06

Last modified

2026-10-01

Known exploited (CISA KEV)

since 2023-09-18, action due 2023-10-09: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Weaknesses

CWE-78

Affected products

• Emg2926 Firmware (Zyxel)

References

• https://www.exploit-db.com/exploits/41782/
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-6884