What is CVE-2019-6554?

CVE-2019-6554 is a high-severity vulnerability in Advantech Webaccess, classified under Improper Access Control. CVSS score: 7.5/10. Published 2019-04-05.

How severe is CVE-2019-6554?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Advantech Webaccess

CVE-2019-6554

Advantech WebAccess/SCADA, Versions 8.3.5 and prior. An improper access control vulnerability may allow an attacker to cause a denial-of-service condition.

Published 2019-04-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.016 (74.4th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 74.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000

Affected products

Advantech Webaccess
Advantech Webaccess/scada — versions Versions 8.3.5 and prior.

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

ics-cert.us-cert.gov/advisories/ICSA-19-092-01 (US Government Resource, Third Party Advisory)

Frequently asked questions

What is CVE-2019-6554?: CVE-2019-6554 is a high-severity vulnerability in Advantech Webaccess, classified under Improper Access Control. CVSS score: 7.5/10. Published 2019-04-05.
How severe is CVE-2019-6554?: High severity. CVSS v3 base score is 7.5 out of 10.