CVE & CISA-KEV Catalog

CVE-2020-7536

HIGH
7.5
CVSS v3
NVD

Description

A CWE-754:Improper Check for Unusual or Exceptional Conditions vulnerability exists in Modicon M340 CPUs (BMXP34* versions prior to V3.30) Modicon M340 Communication Ethernet modules (BMXNOE0100 (H) versions prior to V3.4 BMXNOE0110 (H) versions prior to V6.6 BMXNOR0200H all versions), that could cause the device to be unreachable when modifying network parameters over SNMP.

CWE-754

How to fix

Remediation Available
bmxnoe0100 firmwareNVD
Affected:< 3.4Fixed in:3.4CVE-2020-7536derived from NVD
bmxnoe0110 firmwareNVD
Affected:< 6.6Fixed in:6.6CVE-2020-7536derived from NVD
modicon m340 bmxp341000 firmwareNVD
Affected:< 3.30Fixed in:3.30CVE-2020-7536derived from NVD
modicon m340 bmxp342000 firmwareNVD
Affected:< 3.30Fixed in:3.30CVE-2020-7536derived from NVD
modicon m340 bmxp3420102 firmwareNVD
Affected:< 3.30Fixed in:3.30CVE-2020-7536derived from NVD
modicon m340 bmxp3420102cl firmwareNVD
Affected:< 3.30Fixed in:3.30CVE-2020-7536derived from NVD
modicon m340 bmxp342020 firmwareNVD
Affected:< 3.30Fixed in:3.30CVE-2020-7536derived from NVD
modicon m340 bmxp3420302 firmwareNVD
Affected:< 3.30Fixed in:3.30CVE-2020-7536derived from NVD
modicon m340 bmxp3420302cl firmwareNVD
Affected:< 3.30Fixed in:3.30CVE-2020-7536derived 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

1.16%probability of exploitation in 30 days
63rdpercentile

Moderate risk: more likely to be exploited than 63% of all known CVEs.

References

Related Vulnerabilities

Other CWE-754 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2024-4367High8.873%-Fix
CVE-2022-39288High7.559%-Fix
CVE-2023-30591High7.554%--
CVE-2023-41993High8.829%KEVFix
CVE-2024-43044High8.829%-Fix
CVE-2024-3393High7.527%KEVFix
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CVE-2020-7536 severity badge

Markdown

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HTML

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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.