CVE-2016-8721

Name: CVE-2016-8721
Creator: NVD / NIST
Published: 2017-04-20T18:59:01.577+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 3.28%

Last modified Jun 17, 2026

CVE-2016-8721 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. An exploitable OS Command Injection vulnerability exists in the web application 'ping' functionality of Moxa AWK-3131A Wireless Access Points running firmware 1.1. Specially crafted web form input can cause an OS Command Injection resulting in complete compromise of the vulnerable device. EPSS estimates a 3.28% chance of exploitation in the next 30 days.

Description

An exploitable OS Command Injection vulnerability exists in the web application 'ping' functionality of Moxa AWK-3131A Wireless Access Points running firmware 1.1. Specially crafted web form input can cause an OS Command Injection resulting in complete compromise of the vulnerable device. An attacker can exploit this vulnerability remotely.

Metrics

CVSS 3.1

9.1/10

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

EPSS Probability

3.28%

86.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Moxa	Awk-3131a Firmware	1.1

References

http://www.talosintelligence.com/reports/TALOS-2016-0235/Exploit, Technical Description, Third Party Advisory, VDB Entry
http://www.talosintelligence.com/reports/TALOS-2016-0235/Exploit, Technical Description, Third Party Advisory, VDB Entry

Timeline

Published: Apr 20, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-8721?

How severe is CVE-2016-8721?

CVE-2016-8721 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 3.28% probability of exploitation in the next 30 days.

How do I fix CVE-2016-8721?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-8721?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST