Vulnerability Monitor

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CVE-2020-7488


A CWE-319: Cleartext Transmission of Sensitive Information vulnerability exists which could leak sensitive information transmitted between the software and the Modicon M218, M241, M251, and M258 controllers.


Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), for affected systems. Impacting 11 products from schneider-electric, from schneider-electric, from schneider-electric and 8 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2020, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.


Published

2020-04-22T19:15:11.717

Last Modified

2024-11-21T05:37:14.697

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: NONE
  • Availability Impact: NONE
Exploitability Score

10.0

Impact Score

2.9

Weaknesses
  • Type: Secondary
    CWE-319
  • Type: Primary
    CWE-319

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application schneider-electric ecostruxure_machine_expert * Yes
Application schneider-electric somachine * Yes
Application schneider-electric somachine_motion * Yes
Operating System schneider-electric modicon_m218_firmware * Yes
Hardware schneider-electric modicon_m218 - No
Operating System schneider-electric modicon_m241_firmware * Yes
Hardware schneider-electric modicon_m241 - No
Operating System schneider-electric modicon_m251_firmware * Yes
Hardware schneider-electric modicon_m251 - No
Operating System schneider-electric modicon_m258_firmware * Yes
Hardware schneider-electric modicon_m258 - No

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For schneider-electric's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.