CVE-2020-25238

HIGH

Siemens Simatic Process Control System Neo - Improper Access Control

Title source: rule

Description

A vulnerability has been identified in PCS neo (Administration Console) (All versions < V3.1), TIA Portal (V15, V15.1 and V16). Manipulating certain files in specific folders could allow a local attacker to execute code with SYSTEM privileges. The security vulnerability could be exploited by an attacker with a valid account and limited access rights on the system.

References (3)

[Vendor Advisory] https://cert-portal.siemens.com/productcert/pdf/ssa-428051.pdf

[Third Party Advisory, US Government Resource, VDB Entry] https://us-cert.cisa.gov/ics/advisories/icsa-21-040-05

[Third Party Advisory, US Government Resource] https://www.kb.cert.org/vuls/id/466044

Scores

CVSS v3 7.8

EPSS 0.0012

EPSS Percentile 30.2%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Classification

CWE

CWE-284 CWE-427

Status published

Affected Products (4)

siemens/simatic_process_control_system_neo < 3.1

siemens/totally_integrated_automation_portal

Timeline

Published Feb 09, 2021

Tracked Since Feb 18, 2026