CVE-2020-7587: Siemens Opcenter Execution Discrete

High severity, CVSS 8.2. EPSS: 2.5% chance of exploitation in the next 30 days.

A vulnerability has been identified in Opcenter Execution Discrete (All versions < V3.2), Opcenter Execution Foundation (All versions < V3.2), Opcenter Execution Process (All versions < V3.2), Opcenter Intelligence (All versions < V3.3), Opcenter Quality (All versions < V11.3), Opcenter RD&L (V8.0), SIMATIC IT LMS (All versions < V2.6), SIMATIC IT Production Suite (All versions < V8.0), SIMATIC Notifier Server for Windows (All versions), SIMATIC PCS neo (All versions < V3.0 SP1), SIMATIC STEP 7 (TIA Portal) V15 (All versions < V15.1 Update 5), SIMATIC STEP 7 (TIA Portal) V16 (All versions < V16 Update 2), SIMOCODE ES V15.1 (All versions < V15.1 Update 4), SIMOCODE ES V16 (All versions < V16 Update 1), Soft Starter ES V15.1 (All versions < V15.1 Update 3), Soft Starter ES V16 (All versions < V16 Update 1). Sending multiple specially crafted packets to the affected service could cause a partial remote denial-of-service, that would cause the service to restart itself. On some cases the vulnerability could leak random information from the remote service.

Affected products

  • Siemens Opcenter Execution Discrete: before 3.2 (fixed in 3.2)
  • Siemens Opcenter Execution Foundation: before 3.2 (fixed in 3.2)
  • Siemens Opcenter Execution Process: before 3.2 (fixed in 3.2)
  • Siemens Opcenter Intelligence: before 3.3 (fixed in 3.3)
  • Siemens Opcenter Quality: before 11.3 (fixed in 11.3)
  • Siemens Opcenter Rd&l: version 8.0 only
  • Siemens SIMATIC It Lms: before 2.6 (fixed in 2.6)
  • Siemens SIMATIC It Production Suite: before 8.0 (fixed in 8.0)
  • Siemens SIMATIC Notifier Server: any version
  • Siemens SIMATIC Pcs Neo: before 3.0 (fixed in 3.0); version 3.0 only
  • Siemens SIMATIC Step 7: from 15, before 15.1 (fixed in 15.1); version 15.1 only; version 16 only
  • Siemens Simocode Es: before 15.1 (fixed in 15.1); version 15.1 only; version 16 only
  • Siemens Soft Starter Es: before 15.1 (fixed in 15.1); version 15.1 only

Published 2020-07-14. Last modified 2026-06-17.