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VULNERABILITIES

CVE-2020-7549 Details

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 denial of HTTP and FTP services when a series of specially crafted requests is sent to the controller over HTTP.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CNA: CISA-ADPCVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://www.se.com/ww/en/download/document/SEVD-2020-343-06/ CVEVendor Advisory
https://www.se.com/ww/en/download/document/SEVD-2020-343-06/ [email protected]Vendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-754Improper Check for Unusual or Exceptional Conditions[email protected]

Affected Products

ProductVersions

Change History

20 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2020-7549
NVD Published Date:
Dec 11, 2020
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2020-7549 Details - Not Deferred