Is CVE-2017-6884 actively exploited?

Yes. CVE-2017-6884 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2017-6884 be exploited remotely?

The attack vector of CVE-2017-6884 has not been classified yet.

What is the CVSS score of CVE-2017-6884?

CVE-2017-6884 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2017-6884

HIGHCISA KEVIN THE WILD

CVE-2017-6884

Published: September 18, 2023

EPSS:91.51%probability of exploitation in 30 daysPercentile:99.7th

Official Description

Zyxel EMG2926 routers contain a command injection vulnerability located in the diagnostic tools, specifically the nslookup function. A malicious user may exploit numerous vectors to execute malicious commands on the router, such as the ping_ip parameter to the expert/maintenance/diagnostic/nslookup URI.

NVD Source

CISA KEV Advisory

Zyxel EMG2926 Routers Command Injection Vulnerability

Added to KEV: 2023-09-18Federal patch deadline: 2023-10-09⚠ USED IN RANSOMWARE CAMPAIGNS

Required Action (CISA)

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Risk Analysis

This command injection vulnerability in Zyxel EMG2926 routers, specifically in the nslookup function, allows a malicious user to execute commands on the router. It is a high-severity flaw with a very high EPSS score of 0.91507, indicating a high likelihood of exploitation, and is confirmed to be actively exploited.

Active exploitation of this vulnerability has been observed in the wild. It is remotely exploitable through various vectors, such as the ping_ip parameter.

Recommended Action

Administrators should apply the latest security updates for Zyxel EMG2926 routers to address this command injection vulnerability.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2017-6884 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2017-6884 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.