CVE-2022-45147

HIGH

7.8

CVSS Score

Published: July 9, 2024 at 12:04 PM UTC

Updated: June 17, 2026 at 05:09 AM UTC

2 products affected across 1 vendorSIMATIC PCS neoSIMATIC Step 7

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Severity

HIGH7.8

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

SIMATIC PCS neo · Siemens

95%

4.0 ≤ v < 5.04.0

Affected range stops below 5.0, so it looks safe — our inference, not a vendor statement

SIMATIC Step 7 · Siemens

60%

v < V18 Update 216 ≤ v < 1717 ≤ v < 1818 ≤ v < 18_update_216 17 18

Affected range stops below 17, so it looks safe — our inference, not a vendor statement

Affected range stops below 18, so it looks safe — our inference, not a vendor statement

Affected range stops below 18_update_2, so it looks safe — our inference, not a vendor statement

Affected range stops below V18 Update 2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: [email protected]

https://cert-portal.siemens.com/productcert/html/ssa-825651.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHsiemens

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-502

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