CVE-2021-38431 json
Advantech WebAccess SCADA
published 2021-10-15 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-24883
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 53%
- public exploits
- 0
- none known
Summary
An authenticated user using Advantech WebAccess SCADA in versions 9.0.3 and prior can use API functions to disclose project names and paths from other users.
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
cisa ICSA-21-285-01 updated cvss 4.3
Advantech WebAccess SCADA
-
Advantech WebAccess/SCADA <= 9.0.3affected: mitigation “Advantech recommends users upgrade to v9.1.1 or later.” advantech.com
From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf
Exploit prediction
0.70% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| NVD | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:P/I:N/A:N |
Affected products
- Advantech WebAccess SCADA
Classification
- Weakness
-
- CWE-862 Missing Authorization
References
-
us-cert.cisa.gov
/ics/advisories/icsa-21-285-01
third-party-advisory, us-government-resource
Sources
- CVE List CVE-2021-38431
- NVD CVE-2021-38431
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.