Denial of Service Vulnerability in Schneider Electric Modicon Controllers
CVE-2020-7539

7.5HIGH

Key Information:

Vendor
Schneider Electric
Status
Web Server On Modicon M340, Legacy Offers Modicon Quantum And Modicon Premium And Associated Communication Modules (see Security Notification For Affected Versions)
Vendor
CVE Published:
11 December 2020

Summary

A vulnerability exists in the Web Server component of Schneider Electric's Modicon M340, Modicon Quantum, and Modicon Premium controllers. This issue, classified as an improper check for unusual or exceptional conditions, could lead to a denial of service when the controllers are exposed to specially crafted HTTP packets. Such an attack may disrupt the functionality of the affected devices, impacting system reliability and performance.

Affected Version(s)

Web Server on Modicon M340, Legacy Offers Modicon Quantum and Modicon Premium and associated Communication Modules (see security notification for affected ) Web Server on Modicon M340, Legacy Offers Modicon Quantum and Modicon Premium and associated Communication Modules (see security notification for affected versions)

References

https://www.se.com/ww/en/download/document/SEVD-2020-343-03/
x_refsource_CONFIRM

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.