CVE-2020-7584

HIGH

SIMATIC S7-200 SMART CPU >=2.2 <2.5.1 - Denial of Service via Large Number of New Connections

Title source: llm
STIX 2.1

Description

A vulnerability has been identified in SIMATIC S7-200 SMART CPU family (All versions >= V2.2 < V2.5.1). Affected devices do not properly handle large numbers of new incomming connections and could crash under certain circumstances. An attacker may leverage this to cause a Denial-of-Service situation.

References (1)

Core 1
Core References

Scores

CVSS v3 7.5
EPSS 0.0039
EPSS Percentile 60.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-400
Status published
Products (2)
siemens/simatic_s7-200_smart_sr_cpu_firmware 2.2 - 2.5.1
siemens/simatic_s7-200_smart_st_cpu_firmware 2.2 - 2.5.1
Published Jul 14, 2020
Tracked Since Feb 18, 2026