CVE-2026-4827

HIGH

Schneider Electric Easergy MiCOM C264 - Insufficient Entropy Vulnerability on Multiple Products

Title source: rule

Description

CWE‑331: Insufficient Entropy vulnerability exists that could lead to unauthorized access when an attacker on the network can exploit weaknesses in session‑management protections.

References (1)

Core 1

Core References

https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-132-02&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2026-132-02.pdf

Scores

CVSS v4 8.7

EPSS 0.0031

EPSS Percentile 22.6%

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact total

Details

CWE

CWE-331

Status published

Products (50)

Schneider Electric/Easergy C5 Version 1.1.17 and prior

Schneider Electric/Easergy MiCOM C264 Versions D6.x

Schneider Electric/Easergy MiCOM C264 Versions D6.x all versions

Schneider Electric/Easergy MiCOM C264 Versions D7.33 and prior

Schneider Electric/Easergy MiCOM P30 C434 version prior to C434.679.700

Schneider Electric/Easergy MiCOM P30 Easergy MiCOM C434 version prior to C434.679.700

Schneider Electric/Easergy MiCOM P30 Easergy MiCOM P138 version prior to P138.677.700

Schneider Electric/Easergy MiCOM P30 Easergy MiCOM P139 version prior to P139.678.700

Schneider Electric/Easergy MiCOM P30 Easergy MiCOM P436 version prior to P436.677.701

Schneider Electric/Easergy MiCOM P30 Easergy MiCOM P437 version prior to P437.678.700

... and 40 more

Published May 12, 2026

Tracked Since May 12, 2026