Is CVE-2020-7584 in the CISA KEV catalog?

No. CVE-2020-7584 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-7584?

CVE-2020-7584 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2020-7584?

CVE-2020-7584 has an EPSS score of 1.04% (60th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-7584?

Upgrade simatic s7-200 smart sr cpu firmware to 2.5.1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2020-7584

HIGH

7.5

CVSS v3

NVD

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.

CWE-400Resource Exhaustion

How to fix

Remediation Available

simatic s7-200 smart sr cpu firmwareNVD

Affected:>= 2.2, < 2.5.1Fixed in:2.5.1CVE-2020-7584derived from NVD

simatic s7-200 smart st cpu firmwareNVD

Affected:>= 2.2, < 2.5.1Fixed in:2.5.1CVE-2020-7584derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

1.04%probability of exploitation in 30 days

60thpercentile

Moderate risk: more likely to be exploited than 60% of all known CVEs.

References

Vendor Advisory1

cert-portal.siemens.com

Related Vulnerabilities

Other CWE-400 (Resource Exhaustion) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-44487	High	7.5	100%	KEV	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2011-3192	High	7.8	99%	-	Fix
CVE-2019-11478	Medium	5.3	95%	-	Fix
CVE-2024-25617	Medium	5.3	89%	-	Fix
CVE-2018-1000115	High	7.5	89%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.