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.

CVSS 3.1

8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

33% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-25)

CISA KEV

listed 2023-09-18, due 2023-10-09, known ransomware use

CWE

CWE-78

Published

2017-04-06

Modified

2026-10-01

Record from

the NVD, synced 2026-10-19

Affected

• zyxel:emg2926_firmware

References

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

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