Denial of Service Vulnerability in Siemens SIMATIC MV Series Products
CVE-2023-35920

7.5HIGH

Key Information:

Vendor

Siemens
Status
Simatic Mv540 H
Simatic Mv540 S
Simatic Mv550 H
Simatic Mv550 S
Vendor
CVE Published:
11 July 2023

What is CVE-2023-35920?

A vulnerability exists in the Siemens SIMATIC MV series, where the devices fail to process specifically crafted IP packets. This allows an unauthenticated remote attacker to potentially trigger a denial of service condition. For affected devices, a manual restart is required to return to normal operation. It is crucial for users to evaluate their systems and take the necessary measures to mitigate this vulnerability.

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Affected Version(s)

SIMATIC MV540 H All versions < V3.3.4

SIMATIC MV540 S All versions < V3.3.4

SIMATIC MV550 H All versions < V3.3.4

References

https://cert-portal.siemens.com/productcert/pdf/ssa-56132...

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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