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Vulnerability record · CVE-2020-25238 · published 9 February 2021

CVE-2020-25238: Siemens simatic process control system neo improper access control vulnerability

Siemens · Simatic Process Control System Neo

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.

7.8 CVSS 3.1 High EPSS 0.86% · top 42.2% CWE-284 · Improper access controlCWE-427 · Uncontrolled search path element
7.8CVSS 3.1 base score, v2 7.2
0.86%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

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.

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://cert-portal.siemens.com/productcert/pdf/ssa-428051.pdf Vendor Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-21-040-05 Third Party AdvisoryUS Government ResourceVDB Entry
https://www.kb.cert.org/vuls/id/466044 Third Party AdvisoryUS Government Resource
https://cert-portal.siemens.com/productcert/pdf/ssa-428051.pdf Vendor Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-21-040-05 Third Party AdvisoryUS Government ResourceVDB Entry
https://www.kb.cert.org/vuls/id/466044 Third Party AdvisoryUS Government Resource

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.8CVE-2023-46281Siemens opcenter quality vulnerabilityA vulnerability has been identified in Opcenter Execution Foundation (All versions < V2407), Opcenter Quality (All versions < V2312), SIMATIC PCS neo…EPSS 0.94%8.7CVE-2025-30175Siemens simatic pcs neo out-of-bounds write vulnerabilityA vulnerability has been identified in SIMATIC PCS neo V4.1 (All versions), SIMATIC PCS neo V5.0 (All versions), SINEC NMS (All versions < V4.0), SIN…EPSS 0.65%8.7CVE-2025-30176Siemens simatic pcs neo out-of-bounds read vulnerabilityA vulnerability has been identified in SIMATIC PCS neo V4.1 (All versions), SIMATIC PCS neo V5.0 (All versions), SINEC NMS (All versions < V4.0), SIN…EPSS 0.65%8.7CVE-2025-30174Siemens sinec nms out-of-bounds read vulnerabilityA vulnerability has been identified in SIMATIC PCS neo V4.1 (All versions), SIMATIC PCS neo V5.0 (All versions), SINEC NMS (All versions < V4.0), SIN…EPSS 0.65%7.8CVE-2019-10934Siemens totally integrated automation portal path traversal vulnerabilityA vulnerability has been identified in TIA Portal V14 (All versions), TIA Portal V15 (All versions < V15.1 Update 7), TIA Portal V16 (All versions < …EPSS 0.43%7.5CVE-2023-46284Siemens opcenter quality classic buffer overflow vulnerabilityA vulnerability has been identified in Opcenter Execution Foundation (All versions < V2407), Opcenter Quality (All versions < V2312), SIMATIC PCS neo…EPSS 0.91%7.5CVE-2023-46285Siemens opcenter quality improper input validation vulnerabilityA vulnerability has been identified in Opcenter Execution Foundation (All versions < V2407), Opcenter Quality (All versions < V2312), SIMATIC PCS neo…EPSS 0.91%7.5CVE-2023-46283Siemens opcenter quality classic buffer overflow vulnerabilityA vulnerability has been identified in Opcenter Execution Foundation (All versions < V2407), Opcenter Quality (All versions < V2312), SIMATIC PCS neo…EPSS 0.91%

Source: NIST National Vulnerability Database (record CVE-2020-25238), CISA KEV, FIRST EPSS (scores of 2026-10-16). This page is refreshed as NVD updates the record.