PT-2021-15202 · Schneider Electric · Powerlogic Egx100+3

Published 2021-06-11 · Updated 2026-05-29 · CVE-2021-22764

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions PowerLogic PM55xx (affected versions not specified) PowerLogic PM8ECC (affected versions not specified) PowerLogic EGX100 (affected versions not specified) PowerLogic EGX300 (affected versions not specified)

Description A CWE-287: Improper Authentication issue exists that could cause loss of connectivity to the device via Modbus TCP protocol when an attacker sends a specially crafted HTTP request.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

CVE-2021-22764

Affected Products

Powerlogic Egx100

Powerlogic Egx300

Powerlogic Pm55Xx

Powerlogic Pm8Ecc

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2021-22764 · Security Note
• https://osv.dev/vulnerability/CVE-2021-22764 · Vendor Advisory
• https://t.me/cvenotify/102454 · Telegram Post
• 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 · Note
• https://t.me/cveNotify/165201 · Telegram Post
• 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 · Note