Information Management Error in Schneider Electric Modicon M221
CVE-2018-7790

9.8CRITICAL

Key Information:

Vendor

Schneider Electric
Status
Modicon M221, All References, All Versions Prior To Firmware V1.6.2.0
Vendor
CVE Published:
29 August 2018

What is CVE-2018-7790?

A vulnerability in Schneider Electric's Modicon M221 product allows unauthorized users to replay authentication sequences. This situation could enable attackers to connect to the Modicon M221 and potentially upload the original program from the programmable logic controller (PLC), leading to significant security risks. Users are advised to update to firmware version V1.6.2.0 or later to mitigate this vulnerability.

Affected Version(s)

Modicon M221, all references, all prior to firmware V1.6.2.0 Modicon M221, all references, all versions prior to firmware V1.6.2.0

References

http://www.securityfocus.com/bid/105182
vdb-entryx_refsource_BID
https://www.schneider-electric.com/en/download/document/S...
x_refsource_CONFIRM

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.