// For flags

CVE-2023-32737

 

Severity Score

7.0
*CVSS v4

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A vulnerability has been identified in SIMATIC STEP 7 Safety 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.

Se ha identificado una vulnerabilidad en SIMATIC STEP 7 Safety V18 (todas las versiones &lt; V18 Update 2). Las aplicaciones afectadas no restringen adecuadamente .NET BinaryFormatter al deserializar la entrada controlable por el usuario. Esto podría permitir que un atacante cause confusión de tipos y ejecute código arbitrario dentro de la aplicación afectada. Este es el mismo problema que existe para .NET BinaryFormatter https://docs.microsoft.com/en-us/visualstudio/code-quality/ca2300.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Attack Requirements
None
Privileges Required
High
User Interaction
Passive
System
Vulnerable | Subsequent
Confidentiality
High
None
Integrity
High
None
Availability
High
None
Attack Vector
Local
Attack Complexity
High
Privileges Required
High
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
High
Privileges Required
High
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
None
Automatable
No
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2023-05-12 CVE Reserved
  • 2024-07-09 CVE Published
  • 2025-05-01 CVE Updated
  • 2025-05-05 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-502: Deserialization of Untrusted Data
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Siemens
Search vendor "Siemens"
 Simatic Step 7
Search vendor "Siemens" for product "Simatic Step 7"
*-
Affected