CVE-2023-52891: siemens simatic_energy_manager_basic

Vulnerability summary

CVE-2023-52891 is a medium (CVSS 5.3) vulnerability in siemens simatic_energy_manager_basic. EPSS estimates a 0.46% chance of exploitation in the next 30 days, higher than 38.9% of scored vulnerabilities.

Timeline

1. 09-07-2024
   PublishedVulnerability first disclosed.
2. 27-08-2025
   Last modifiedVulnerability information updated.

Description

A vulnerability has been identified in SIMATIC Energy Manager Basic (All versions < V7.5), SIMATIC Energy Manager PRO (All versions < V7.5), SIMATIC IPC DiagBase (All versions), SIMATIC IPC DiagMonitor (All versions), SIMIT V10 (All versions), SIMIT V11 (All versions < V11.1). Unified Automation .NET based OPC UA Server SDK before 3.2.2 used in Siemens products are affected by a similar vulnerability as documented in CVE-2023-27321 for the OPC Foundation UA .NET Standard implementation. A successful attack may lead to high load situation and memory exhaustion, and may block the server.

• CWE-1325Improperly Controlled Sequential Memory AllocationThe product manages a group of objects or resources and performs a separate memory allocation for each object, but it does not properly limit the total amount of memory that is consumed by all of the combined objects.