CVE-2017-6884
Zyxel EMG2926 Routers Command Injection Vulnerabil - [Actively Exploited]
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.
INFO
Published Date :
April 6, 2017, 5:59 p.m.
Last Modified :
March 14, 2025, 8:33 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
2.8
CISA KEV (Known Exploited Vulnerabilities)
For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.
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.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-command-injection-vulnerability-in-emg2926-q10a-ethernet-cpe, https://www.zyxelguard.com/Zyxel-EOL.asp; https://nvd.nist.gov/vuln/detail/CVE-2017-6884
Public PoC/Exploit Available at Github
CVE-2017-6884 has a 3 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2017-6884.
| URL | Resource |
|---|---|
| https://www.exploit-db.com/exploits/41782/ | Exploit Third Party Advisory VDB Entry |
| https://www.exploit-db.com/exploits/41782/ | Exploit Third Party Advisory VDB Entry |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Intelligence Vickam Cybersecurity Blocklists (IPv4). DST = France & Belgium
botnets ddos ipv4 malware zombies ipaddresses malicious cyber-threat-intelligence cybersecurity
Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.
cisa-kev vulnerability 0day cisa exploits
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2017-6884 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2017-6884 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Modified Analysis by [email protected]
Mar. 14, 2025
Action Type Old Value New Value Changed CPE Configuration AND OR *cpe:2.3:o:zyxel:emg2926_firmware:v1.00(aaqt.4)b8:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:emg2926:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:emg2926_firmware:v1.00(aaqt.4)b8:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:emg2926:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:zyxel:emg2926_firmware:v1.00(aaqt.4)b8:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:emg2926:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:emg2926_firmware:v1.00(aaqt.4)b8:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:emg2926:-:*:*:*:*:*:*:* -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Feb. 04, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Feb. 03, 2025
Action Type Old Value New Value Added CWE CWE-78 -
Modified Analysis by [email protected]
Jan. 23, 2025
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Removed CVSS V3 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://www.exploit-db.com/exploits/41782/ -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Apr. 12, 2017
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:S/C:C/I:C/A:C) Added CVSS V3 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://www.exploit-db.com/exploits/41782/ No Types Assigned https://www.exploit-db.com/exploits/41782/ Exploit, Third Party Advisory, VDB Entry Added CWE CWE-78 Added CPE Configuration AND OR *cpe:2.3:o:zyxel:emg2926_firmware:v1.00\(aaqt.4\)b8:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:emg2926:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2017-6884 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2017-6884
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
92.85 }} -0.08%
score
0.99762
percentile