CVE-2025-40797
Modified Modified - Updated After Analysis
BaseFortify

Publication date: 2025-09-09

Last updated on: 2026-06-09

Assigner: Siemens AG

Description
A vulnerability has been identified in SIMATIC PCS neo V4.1 (All versions), SIMATIC PCS neo V5.0 (All versions), SIMATIC PCS neo V6.0 (All versions < V6.0 SP1 Update 1), User Management Component (UMC) (All versions < V2.15.1.3). Affected products contain a out-of-bounds read vulnerability in the integrated UMC component. This could allow an unauthenticated remote attacker to cause a denial of service condition.
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Meta Information
Published
2025-09-09
Last Modified
2026-06-09
Generated
2026-06-16
AI Q&A
2025-09-09
EPSS Evaluated
2026-06-15
NVD
CVE-2025-40797
EUVD
EUVD-2025-27238
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
siemens simatic_pcs_neo 4.1
siemens simatic_pcs_neo 5.0
siemens user_management_component to 2.15.1.3 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-125 The product reads data past the end, or before the beginning, of the intended buffer.
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Executive Summary

This vulnerability is an out-of-bounds read issue in the User Management Component (UMC) integrated into SIMATIC PCS neo versions 4.1 and 5.0. It allows an unauthenticated remote attacker to cause a denial of service (DoS) condition by exploiting this flaw.

Impact Analysis

The vulnerability can be exploited remotely without authentication to cause a denial of service, potentially disrupting the availability of the affected SIMATIC PCS neo systems.

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