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TI-2020-12744 Aliases CVE-2020-16215GHSA-256w-3jc2-hh38

Stack-based buffer overflow in Advantech WebAccess HMI Designer

Priority MEDIUM 41CWE-121Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.

Summary

Advantech WebAccess HMI Designer, Versions 2.1.9.31 and prior. Processing specially crafted project files lacking proper validation of user supplied data may cause a stack-based buffer overflow, which may allow remote code execution, disclosure/modification of information, or cause the application to crash.

Why it matters now

EPSS 0.03976 90th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—Advantech WebAccess HMI Designerup to 2.1.9.31—No fix listedCNA
  • Advantech WebAccess HMI Designer Vendor— Affected up to 2.1.9.31 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:advantech:webaccess\/hmi_designer:*:*:*:*:*:*:*:*up to 2.1.9.31VulnerableAdvantech
  • cpe:2.3:a:advantech:webaccess\/hmi_designer:*:*:*:*:*:*:*:* Versions up to 2.1.9.31 Vulnerable ·Advantech

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-16215
  2. 2026-10-03 Alias added: GHSA-256w-3jc2-hh38

References

Advisory 2

  • TI-2020-12736 Heap-based buffer overflow in Advantech WebAccess HMI Designer CVSS 3.1HIGH 7.8
  • TI-2020-12758 Type confusion in Advantech WebAccess HMI Designer CVSS 3.1HIGH 7.8
  • TI-2020-12746 Double free in Advantech WebAccess HMI Designer CVSS 3.1HIGH 7.8
  • TI-2020-12742 Out-of-bounds write in Advantech WebAccess HMI Designer CVSS 3.1HIGH 7.8
  • TI-2021-12612 Memory corruption in WebAccess HMI Designer CVSS 3.1HIGH 7.8
  • TI-2021-12610 Out-of-bounds write in WebAccess HMI Designer CVSS 3.1HIGH 7.8
See all 11 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences