8.6

CVE-2019-6521: advantech webaccess\/scada Improper Authentication

CVSS: 8.6v3.0HighModified
Published 05-02-2019Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2019-6521 is a high (CVSS 8.6) Improper Authentication vulnerability in advantech webaccess\/scada. EPSS estimates a 1.93% chance of exploitation in the next 30 days, higher than 79.7% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.6/10
010
High · v3.0 (NVD)
EPSS score
1.93%
0%100%
Low · -0.29 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 05-02-2019
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

WebAccess/SCADA, Version 8.3. Specially crafted requests could allow a possible authentication bypass that could allow an attacker to obtain and manipulate sensitive information.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.93%

Chance of exploitation in the next 30 days

Percentile

80%

Versus all other CVEs

30-day change

-0.29 pp

From 2.21% on 21-09-2026

21-09-202621-10-2026
EPSS score
1.93%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Advantech1 product

1 vendor · 1 product

References

2 links