CVE-2025-40796

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-2025-40796?

A vulnerability has been identified in SIMATIC PCS neo V4.1 (All versions), SIMATIC PCS neo V5.0 (All versions), 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.

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

.
CVE-2025-40796 : Out-of-Bounds Read Vulnerability in SIMATIC PCS neo and User Management Component