CVE & CISA-KEV Catalog

CVE-2020-7539

HIGH
7.5
CVSS v3
NVD

Description

A CWE-754 Improper Check for Unusual or Exceptional Conditions vulnerability exists in the Web Server on Modicon M340, Legacy Offers Modicon Quantum and Modicon Premium and associated Communication Modules (see security notification for affected versions), that could cause a denial of service vulnerability when a specially crafted packet is sent to the controller over HTTP.

CWE-754

How to fix

Remediation Available
140cpu65150 firmwareNVD
Affected:< 6.1Fixed in:6.1CVE-2020-7539derived from NVD
140noc77101 firmwareNVD
Affected:< 1.08Fixed in:1.08CVE-2020-7539derived from NVD
140noc78000 firmwareNVD
Affected:< 1.74Fixed in:1.74CVE-2020-7539derived from NVD
140noc78100 firmwareNVD
Affected:< 1.74Fixed in:1.74CVE-2020-7539derived from NVD
140noe77111 firmwareNVD
Affected:< 7.1Fixed in:7.1CVE-2020-7539derived from NVD
bmxnoc0401 firmwareNVD
Affected:< 2.10Fixed in:2.10CVE-2020-7539derived from NVD
bmxnoe0100 firmwareNVD
Affected:< 3.3Fixed in:3.3CVE-2020-7539derived from NVD
bmxnoe0110 firmwareNVD
Affected:< 6.5Fixed in:6.5CVE-2020-7539derived from NVD
modicon m340 bmxp341000 firmwareNVD
Affected:< 3.30Fixed in:3.30CVE-2020-7539derived from NVD
modicon m340 bmxp342000 firmwareNVD
Affected:< 3.30Fixed in:3.30CVE-2020-7539derived from NVD
modicon m340 bmxp3420102 firmwareNVD
Affected:< 3.30Fixed in:3.30CVE-2020-7539derived from NVD
modicon m340 bmxp3420102cl firmwareNVD
Affected:< 3.30Fixed in:3.30CVE-2020-7539derived from NVD
modicon m340 bmxp342020 firmwareNVD
Affected:< 3.30Fixed in:3.30CVE-2020-7539derived from NVD
modicon m340 bmxp3420302 firmwareNVD
Affected:< 3.30Fixed in:3.30CVE-2020-7539derived from NVD
modicon m340 bmxp3420302cl firmwareNVD
Affected:< 3.30Fixed in:3.30CVE-2020-7539derived from NVD
tsxety4103 firmwareNVD
Affected:< 6.2Fixed in:6.2CVE-2020-7539derived from NVD
tsxety5103 firmwareNVD
Affected:< 6.4Fixed in:6.4CVE-2020-7539derived from NVD
tsxp574634 firmwareNVD
Affected:< 6.1Fixed in:6.1CVE-2020-7539derived from NVD
tsxp575634 firmwareNVD
Affected:< 6.1Fixed in:6.1CVE-2020-7539derived from NVD
tsxp576634 firmwareNVD
Affected:< 6.1Fixed in:6.1CVE-2020-7539derived 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

1.18%probability of exploitation in 30 days
64thpercentile

Moderate risk: more likely to be exploited than 64% of all known CVEs.

References

Vendor Advisory1

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
Embed a live status badge for CVE-2020-7539
CVE-2020-7539 severity badge

Markdown

[![CVE-2020-7539](https://tridentstack.com/cve/badge/CVE-2020-7539.svg)](https://tridentstack.com/cve/CVE-2020-7539)

HTML

<a href="https://tridentstack.com/cve/CVE-2020-7539"><img src="https://tridentstack.com/cve/badge/CVE-2020-7539.svg" alt="CVE-2020-7539"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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.