What is CVE-2016-5793?

CVE-2016-5793 is a high-severity vulnerability in Moxa Active Opc Server, classified under Unquoted Search Path or Element. CVSS score: 8.8/10. Published 2016-09-24.

How severe is CVE-2016-5793?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Moxa Active Opc Server

CVE-2016-5793

Unquoted Windows search path vulnerability in Moxa Active OPC Server before 2.4.19 allows local users to gain privileges via a Trojan horse executable file in the %SYSTEMDRIVE% directory.

Published 2016-09-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (29.6th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 29.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Moxa Active Opc Server

Weakness classification (CWE)

CWE-428 — Unquoted Search Path or Element

References

ics-cert.us-cert.gov/advisories/ICSA-16-264-01 (US Government Resource, Third Party Advisory)
www.securityfocus.com/bid/93046 (vdb-entry)

Frequently asked questions

What is CVE-2016-5793?: CVE-2016-5793 is a high-severity vulnerability in Moxa Active Opc Server, classified under Unquoted Search Path or Element. CVSS score: 8.8/10. Published 2016-09-24.
How severe is CVE-2016-5793?: High severity. CVSS v3 base score is 8.8 out of 10.