CVE-2021-22764

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
schneiderCNA
---
---
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 55%
VendorProductVersion
schneider-electricpowerlogic_pm5560_firmware
𝑥
< 2.7.8
schneider-electricpowerlogic_pm5561_firmware
𝑥
< 10.7.3
schneider-electricpowerlogic_pm5562_firmware
𝑥
≤ 2.5.4
schneider-electricpowerlogic_pm5563_firmware
𝑥
< 2.7.8
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
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
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