How severe is CVE-2016-8723?

CVE-2016-8723 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2016-8723 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-8723?

CVE-2016-8723 affects Moxa Awk-3131a Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-8723?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2016-8723 published?

CVE-2016-8723 was published on 2017-04-13 and last updated on 2026-06-17.

CVE-2016-8723

CVE-2016-8723 is a high-severity vulnerability in Moxa Awk-3131a Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 7.8
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Moxa Awk-3131a Firmware
Published: 2017-04-13
Last modified: 2026-06-17

Description

An exploitable null pointer dereference exists in the Web Application functionality of Moxa AWK-3131A Wireless Access Point running firmware 1.1. Any HTTP GET request not preceded by an '/' will cause a segmentation fault in the web server. An attacker can send any of a multitude of potentially unexpected HTTP get requests to trigger this vulnerability.

Frequently asked questions

What is CVE-2016-8723?: An exploitable null pointer dereference exists in the Web Application functionality of Moxa AWK-3131A Wireless Access Point running firmware 1.1. Any HTTP GET request not preceded by an '/' will cause a segmentation fault in the web server. An attacker can send any of a multitude of potentially unexpected HTTP get requests to trigger this vulnerability.
How severe is CVE-2016-8723?: CVE-2016-8723 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2016-8723 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-8723?: CVE-2016-8723 affects Moxa Awk-3131a Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-8723?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2016-8723 published?: CVE-2016-8723 was published on 2017-04-13 and last updated on 2026-06-17.

References

http://www.talosintelligence.com/reports/TALOS-2016-0237/

Affected products (1)

cpe:2.3:o:moxa:awk-3131a_firmware:1.1:*:*:*:*:*:*:*

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