CVE-2021-22764

MEDIUM

PowerLogic - Improper Authentication

Title source: llm

Description

A CWE-287: Improper Authentication vulnerability exists in PowerLogic PM55xx, PowerLogic PM8ECC, PowerLogic EGX100 and PowerLogic EGX300 (see security notification for version infromation) that could cause loss of connectivity to the device via Modbus TCP protocol when an attacker sends a specially crafted HTTP request.

References (2)

Core 2

Core References

Various Sources

http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-159-02%2Chttp://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-159-03

Various Sources x_refsource_misc

https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-159-02&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2021-159-02.pdf

Scores

CVSS v3 5.3

EPSS 0.0025

EPSS Percentile 48.1%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Details

CWE

CWE-287

Status published

Products (4)

schneider-electric/powerlogic_pm5560_firmware < 2.7.8

schneider-electric/powerlogic_pm5561_firmware < 10.7.3

schneider-electric/powerlogic_pm5562_firmware < 2.5.4

schneider-electric/powerlogic_pm5563_firmware < 2.7.8

Published Jun 11, 2021

Tracked Since Feb 18, 2026