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TI-2021-19913 Aliases CVE-2021-44222GHSA-4mhg-63jh-q754

Missing authentication in Siemens SIMATIC eaSie Core Package

Priority MEDIUM 42CWE-306Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-306.

Summary

A vulnerability has been identified in SIMATIC eaSie Core Package (All versions < V22.00). The underlying MQTT service of affected systems does not perform authentication in the default configuration. This could allow an unauthenticated remote attacker to send arbitrary messages to the service and thereby issue arbitrary requests in the affected system.

Why it matters now

EPSS 0.0134 71st percentileScored 2026-11-07
Fix Fixed SIMATIC eaSie Core Package (Siemens): V22.00

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
SiemensSIMATIC eaSie Core Packagebefore V22.00V22.00Patch availableCNA
  • SIMATIC eaSie Core Package VendorSiemens Affected before V22.00 Fixed in V22.00 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:siemens:simatic_easie_core_package:*:*:*:*:*:*:*:*before 22.00VulnerableSiemens
  • cpe:2.3:a:siemens:simatic_easie_core_package:*:*:*:*:*:*:*:* Versions before 22.00 Vulnerable ·Siemens

Remediation

  • Fix · CNA SIMATIC eaSie Core Package (Siemens) Fixed in V22.00

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-44222
  2. 2026-10-03 Alias added: GHSA-4mhg-63jh-q754

References

Patch 1

  • TI-2021-19912 Improper input validation in Siemens SIMATIC eaSie Core Package CVSS 3.1HIGH 7.5

Sources

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