Denial of Service Risk in Siemens Devices
CVE-2021-44694

5.5MEDIUM

Summary

Certain Siemens industrial devices are susceptible to a vulnerability related to the improper handling of specially crafted packets transmitted to TCP port 102. Exploiting this flaw may enable an attacker to create a denial of service condition, disrupting operations and potentially leading to significant downtime.

Affected Version(s)

SIMATIC Drive Controller CPU 1504D TF All versions < V2.9.7

SIMATIC Drive Controller CPU 1507D TF All versions < V2.9.7

SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) All versions < V21.9.7

References

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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