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01 Record

CVE-2021-38431

Advantech WebAccess SCADA

MediumPUBLISHEDCNA: icscert
CNA base score4.3 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

02 Description

Advantech WebAccess SCADA

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.69% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 52.6% of scored records. A rank, not a probability.
NVD base score
4.3 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-10-15 12:29Z5 YR AGO
Last updated
2024-09-16 18:28Z2 YR AGO
Reserved
2021-08-10
Assigning CNA
icscert
Record state
PUBLISHED
Severity
Medium (CVSS 4.3)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weaknesses
Data version
5.1
Document digest
f5e8d984592ade8c911591f05ba68f866e60522766e6686e5dba641f2bf0d8c0

05 Affected products

VendorProductVersionsPlatforms
AdvantechWebAccess SCADAAll to 9.0.3—

06 References

07 Remediation

Advantech recommends users upgrade to v9.1.1 or later.