CVE-2022-45147: Siemens SIMATIC Pcs Neo

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

A vulnerability has been identified in SIMATIC PCS neo V4.0 (All versions), SIMATIC STEP 7 V16 (All versions), SIMATIC STEP 7 V17 (All versions), SIMATIC STEP 7 V18 (All versions < V18 Update 2). Affected applications do not properly restrict the .NET BinaryFormatter when deserializing user-controllable input. This could allow an attacker to cause a type confusion and execute arbitrary code within the affected application. This is the same issue that exists for .NET BinaryFormatter https://docs.microsoft.com/en-us/visualstudio/code-quality/ca2300.

Affected products

• Siemens SIMATIC Pcs Neo: from 4.0, before 5.0 (fixed in 5.0)
• Siemens SIMATIC Pcs Neo v4.0: any version
• Siemens SIMATIC Step 7: from 16, before 17 (fixed in 17); from 17, before 18 (fixed in 18); from 18, before 18_update_2 (fixed in 18_update_2)
• Siemens SIMATIC Step 7 v16: any version
• Siemens SIMATIC Step 7 v17: any version
• Siemens SIMATIC Step 7 v18: before V18 Update 2 (fixed in V18 Update 2)

Published 2024-07-09. Last modified 2026-06-17.