CVE-2020-7584

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
siemensCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 59%
VendorProductVersion
siemenssimatic_s7-200_smart_sr_cpu_firmware
2.2 ≤
𝑥
< 2.5.1
siemenssimatic_s7-200_smart_st_cpu_firmware
2.2 ≤
𝑥
< 2.5.1
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://cert-portal.siemens.com/productcert/pdf/ssa-589181.pdf
https://cert-portal.siemens.com/productcert/pdf/ssa-589181.pdf