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TI-2021-12560 Aliases CVE-2021-32951GHSA-9rgm-96q6-gc9m

Advantech WebAccess/NMS Improper Authentication

Priority LOW 26CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-287.

Summary

WebAccess/NMS (Versions prior to v3.0.3_Build6299) has an improper authentication vulnerability, which may allow unauthorized users to view resources monitored and controlled by the WebAccess/NMS, as well as IP addresses and names of all the devices managed via WebAccess/NMS.

Why it matters now

EPSS 0.00948 61st percentileScored 2026-11-07
Fix Fixed WebAccess/NMS (Advantech): v3.0.3_Build6299

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
AdvantechWebAccess/NMSVersions to before v3.0.3_Build6299v3.0.3_Build6299Patch availableCNA
  • WebAccess/NMS VendorAdvantech Affected Versions to before v3.0.3_Build6299 Fixed in v3.0.3_Build6299 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:advantech:webaccess\/nms:*:*:*:*:*:*:*:*up to 3.0.3VulnerableAdvantech
  • cpe:2.3:a:advantech:webaccess\/nms:*:*:*:*:*:*:*:* Versions up to 3.0.3 Vulnerable ·Advantech

Remediation

  • Fix · CNA WebAccess/NMS (Advantech) Fixed in v3.0.3_Build6299

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-32951
  2. 2026-10-03 Alias added: GHSA-9rgm-96q6-gc9m

References

Patch 1

  • TI-2020-08531 Path traversal in WebAccess/NMS CVSS 3.1CRITICAL 9.1
  • TI-2018-06387 Heap-based buffer overflow in Advantech WebAccess CVSS 3.1CRITICAL 9.8
  • TI-2018-07478 Path traversal in Advantech WebAccess CVSS 3.0CRITICAL 9.8
  • TI-2018-05408 Stack-based buffer overflow in Advantech WebAccess CVSS 3.1CRITICAL 9.8
  • TI-2018-05414 Access control flaw in Advantech WebAccess CVSS 3.0CRITICAL 9.8
  • TI-2018-05406 NULL pointer dereference in Advantech WebAccess CVSS 3.0CRITICAL 9.8
See all 19 →

Sources

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