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TI-2021-08891 Aliases CVE-2021-27398GHSA-66r9-64hr-2999

Stack-based buffer overflow in Siemens Tecnomatix Plant Simulation

Priority LOW 37CWE-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
Fixed

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

Summary

A vulnerability has been identified in Tecnomatix Plant Simulation (All versions < V16.0.5). The PlantSimCore.dll library lacks proper validation of user-supplied data when parsing SPP files. This could result in a stack based buffer overflow, a different vulnerability than CVE-2021-27396. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13290)

Why it matters now

EPSS 0.0145 73rd percentileScored 2026-11-07
Fix Fixed Tecnomatix Plant Simulation (Siemens): V16.0.5

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
SiemensTecnomatix Plant Simulationbefore V16.0.5V16.0.5Patch availableCNA
  • Tecnomatix Plant Simulation VendorSiemens Affected before V16.0.5 Fixed in V16.0.5 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:siemens:tecnomatix_plant_simulation:*:*:*:*:*:*:*:*before 16.0.5VulnerableSiemens
  • cpe:2.3:a:siemens:tecnomatix_plant_simulation:*:*:*:*:*:*:*:* Versions before 16.0.5 Vulnerable ·Siemens

Remediation

  • Fix · CNA Tecnomatix Plant Simulation (Siemens) Fixed in V16.0.5

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-27398
  2. 2026-10-03 Alias added: GHSA-66r9-64hr-2999

References

Advisory 2

  • TI-2023-12136 Stack-based buffer overflow in Siemens Tecnomatix Plant Simulation CVSS 3.1HIGH 7.8
  • TI-2021-08890 Memory corruption in Siemens Tecnomatix Plant Simulation CVSS 3.1HIGH 7.8
  • TI-2021-08889 Stack-based buffer overflow in Siemens Tecnomatix Plant Simulation CVSS 3.1HIGH 7.8
  • TI-2024-15792 Stack-based buffer overflow in Siemens Tecnomatix Plant Simulation V2201 CVSS 3.1HIGH 7.8
  • TI-2024-15791 Stack-based buffer overflow in Siemens Tecnomatix Plant Simulation V2201 CVSS 3.1HIGH 7.8
  • TI-2024-15790 Heap-based buffer overflow in Siemens Tecnomatix Plant Simulation V2201 CVSS 3.1HIGH 7.8
See all 85 →

Sources

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