CVE-2018-7758 Information

Description

A denial of service vulnerability exists in Schneider Electric’s MiCOM Px4x (P540 range excluded) with legacy Ethernet board MiCOM P540D Range with Legacy Ethernet Board and MiCOM Px4x Rejuvenated could lose network communication in case of TCP/IP open requests on port 20000 (DNP3oE) if an older TCI/IP session is still open with identical IP address and port number.

CVSS Vector

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://www.schneider-electric.com/en/download/document/SEVD-2018-074-02/ https://www.schneider-electric.com/en/download/document/SEVD-2018-074-03/ https://www.schneider-electric.com/en/download/document/SEVD-2018-074-04/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.5