CVE Vulnerability

CVE-2018-7838

A CWE-119 Buffer Errors vulnerability exists in Modicon M580 CPU - BMEP582040, all versions before V2.90, and Modicon Ethernet Module BMENOC0301, all versions before V2.16, which could cause denial of service on the FTP service of the controller or the Ethernet BMENOC module when it receives a FTP CWD command with a data length greater than 1020 bytes. A power cycle is then needed to reactivate the FTP service.

7.8 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 6.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://www.schneider-electric.com/ww/en/download/document/SEVD-2019-190-03 Vendor Advisory
Configurations

Configuration 1
Information

Published : 2019-07-15 09:15

Updated : 2022-04-19 03:36

NVD link : CVE-2018-7838

Mitre link : CVE-2018-7838

Products Affected

Modicon M580 Bmep586040c

Schneider-electric

CWE
CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer