Out-of-Bounds Read Vulnerability in SIMATIC PCS neo and User Management Component
CVE-2025-40797

8.7HIGH

Key Information:

Vendor

Siemens
Status
Simatic Pcs Neo V4.1
Simatic Pcs Neo V5.0
User Management Component (umc)
Vendor
CVE Published:
9 September 2025

What is CVE-2025-40797?

A vulnerability has been discovered in the SIMATIC PCS neo and User Management Component that allows for an out-of-bounds read condition. This flaw affects SIMATIC PCS neo V4.1 and V5.0 in all versions, as well as User Management Component versions prior to 2.15.1.3. Attackers could potentially exploit this vulnerability to conduct unauthorized actions, leading to service disruptions. It is crucial for organizations using these products to apply the recommended updates to mitigate any risks associated with this vulnerability.

Affected Version(s)

SIMATIC PCS neo V4.1 0

SIMATIC PCS neo V5.0 0

User Management Component (UMC) 0

References

https://cert-portal.siemens.com/productcert/html/ssa-7224...

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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CVE-2025-40797 : Out-of-Bounds Read Vulnerability in SIMATIC PCS neo and User Management Component