What is CVE-2016-5799?

CVE-2016-5799 is a critical-severity vulnerability in Moxa Oncell G3001 Firmware, classified under Improper Authorization. CVSS score: 9.8/10. Published 2016-08-24.

How severe is CVE-2016-5799?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Moxa Oncell G3001 Firmware

CVE-2016-5799

Moxa OnCell G3100V2 devices before 2.8 and G3111, G3151, G3211, and G3251 devices before 1.7 do not properly restrict authentication attempts, which makes it easier for remote attackers to obtain access via a brute-force attack.

Published 2016-08-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.040 (90.2th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 90.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.040 · newest: 0.040 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-285 — Improper Authorization

References

ics-cert.us-cert.gov/advisories/ICSA-16-236-01 (US Government Resource, Third Party Advisory, Mitigation)
www.securityfocus.com/bid/92606 (vdb-entry)

Frequently asked questions

What is CVE-2016-5799?: CVE-2016-5799 is a critical-severity vulnerability in Moxa Oncell G3001 Firmware, classified under Improper Authorization. CVSS score: 9.8/10. Published 2016-08-24.
How severe is CVE-2016-5799?: Critical severity. CVSS v3 base score is 9.8 out of 10.