What is CVE-2021-27398?

CVE-2021-27398 is a high-severity vulnerability in Siemens Tecnomatix Plant Simulation, classified under Stack-based Buffer Overflow. CVSS score: 7.8/10. Published 2021-05-12.

How severe is CVE-2021-27398?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Siemens Tecnomatix Plant Simulation

CVE-2021-27398

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)

Vulnerability class: Buffer Overflow

EPSS: 0.015 (70.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Siemens Tecnomatix Plant Simulation — versions All versions < V16.0.5
Siemens Tecnomatix_plant_simulation

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

References

productcert@siemens.com (x_refsource_MISC, Vendor Advisory)
productcert@siemens.com (VDB Entry, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-27398?: CVE-2021-27398 is a high-severity vulnerability in Siemens Tecnomatix Plant Simulation, classified under Stack-based Buffer Overflow. CVSS score: 7.8/10. Published 2021-05-12.
How severe is CVE-2021-27398?: High severity. CVSS v3 base score is 7.8 out of 10.