CVE-2025-40795: Buffer Overflow

Published Sep 9, 2025
·
Updated

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 stack-based buffer overflow vulnerability in the integrated UMC component. This could allow an unauthenticated remote attacker to execute arbitrary code or to cause a denial of service condition.

Affected Software

5 affected components
Siemens Simatic Pcs Neo=4.1, =5.0
Siemens User Management Component (UMC)<2.15.1.3
Siemens Simatic Pcs Neo=4.1
Siemens Simatic Pcs Neo=5.0
Siemens User Management Component<2.15.1.3

Event History

Sep 9, 2025
CVE Published
via MITRE·08:48 AM
Data Sourced
via MITRE·08:48 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·09:15 AM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2025-40795?

CVE-2025-40795 is considered a high severity vulnerability due to its stack-based buffer overflow risks.

2

How do I fix CVE-2025-40795?

To mitigate CVE-2025-40795, update the User Management Component (UMC) to version 2.15.1.3 or later.

3

Which products are affected by CVE-2025-40795?

CVE-2025-40795 affects all versions of Siemens SIMATIC PCS neo V4.1 and V5.0, as well as UMC versions prior to 2.15.1.3.

4

What kind of vulnerability is CVE-2025-40795?

CVE-2025-40795 is identified as a stack-based buffer overflow vulnerability within the integrated UMC component.

5

Can CVE-2025-40795 be exploited remotely?

Yes, CVE-2025-40795 can potentially be exploited by an unauthorized user if they gain access to the affected systems.

Contact

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