CVE-2020-12026 json
Advantech WebAccess Node, Version 8.4.4 and prior, Version 9.0.0.
published 2020-05-08 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-4342
- cvss
- 8.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.3%
- EPSS 2.3% chance of exploitation in 30 days, percentile 83%
- public exploits
- 0
- none known
Summary
Advantech WebAccess Node, Version 8.4.4 and prior, Version 9.0.0. Multiple relative path traversal vulnerabilities exist that may allow a low privilege user to overwrite files outside the application’s control.
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
cisa ICSA-20-128-01 updated cvss 8.0
Advantech WebAccess Node
-
Advantech WebAccess Node 9.0.0, <= 8.4.4affected: mitigation “Advantech has released WebAccessNode Version 8.4.4.P0320844 to address the reported vulnerabilities for users currently using WebAccessNode Version 8.4.4” support.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
2.31% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.5 | AV:N/AC:L/Au:S/C:P/I:P/A:P |
Affected products
- n/a Advantech WebAccess Node
Classification
References
-
us-cert.gov
/ics/advisories/icsa-20-128-01
third-party-advisory, us-government-resource
-
zerodayinitiative.com
/advisories/ZDI-20-626/
third-party-advisory, vdb-entry
Sources
- CVE List CVE-2020-12026
- NVD CVE-2020-12026
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