Out-of-Bounds Read Vulnerability in SIMATIC PCS neo by Siemens
CVE-2025-40798
8.7HIGH
Key Information:
- Vendor
Siemens
- Vendor
- CVE Published:
- 9 September 2025
What is CVE-2025-40798?
An out-of-bounds read vulnerability has been identified in the integrated User Management Component (UMC) of SIMATIC PCS neo. This flaw affects all versions of SIMATIC PCS neo V4.1 and V5.0, as well as all versions of the UMC earlier than V2.15.1.3. If exploited, this vulnerability could allow an unauthenticated remote attacker to cause a denial of service condition, impacting the availability and performance of the affected systems.
Affected Version(s)
SIMATIC PCS neo V4.1 0
SIMATIC PCS neo V5.0 0
User Management Component (UMC) 0