Denial-of-Service Vulnerability in Siemens SIMATIC RF Readers
CVE-2021-31340

7.5HIGH

Key Information:

Vendor

Siemens
Status
Simatic Rf166c
Simatic Rf185c
Simatic Rf186c
Simatic Rf186ci
Vendor
CVE Published:
8 June 2021

What is CVE-2021-31340?

A vulnerability in Siemens' SIMATIC RF readers allows an attacker to exploit improper handling of excessive incoming connections, potentially leading to a Denial-of-Service (DoS) condition. This affects various versions of SIMATIC RF166C, RF185C, RF186C, RF186CI, RF188C, RF188CI, RF360R, as well as multiple models of SIMATIC Readers RF610R, RF615R, RF650R, RF680R, and RF685R. Exploitation of this vulnerability may disrupt services, significantly impacting operational integrity.

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Affected Version(s)

SIMATIC Reader RF610R CMIIT All versions > V3.0 < V4.0

SIMATIC Reader RF610R ETSI All versions > V3.0 < V4.0

SIMATIC Reader RF610R FCC All versions > V3.0 < V4.0

References

https://cert-portal.siemens.com/productcert/pdf/ssa-78729...
x_refsource_MISC

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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