CVE-2026-4827

Summary

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.

Affected Software

VendorProductVersion RangeStatus
Schneider ElectricEasergy MiCOM C264Versions D6.xaffected
Schneider ElectricEasergy MiCOM C264Versions D7.33 and prioraffected
Schneider ElectricEasergy C5Version 1.1.17 and prioraffected
Schneider ElectricEasergy MiCOM P30P139 version prior to P139.678.700affected
Schneider ElectricEasergy MiCOM P30P437 version prior to P437.678.700affected
Schneider ElectricEasergy MiCOM P30P439 version prior to P439.678.700affected
Schneider ElectricEasergy MiCOM P30P532 version prior to P532.678.700affected
Schneider ElectricEasergy MiCOM P30P539 version prior to P539.678.700affected
Schneider ElectricEasergy MiCOM P30P631 version prior to P631.678.700affected
Schneider ElectricEasergy MiCOM P30P632 version prior to P632.678.700affected
Schneider ElectricEasergy MiCOM P30P633 version prior to P633.678.700affected
Schneider ElectricEasergy MiCOM P30P634 version prior to P634.678.700affected
Schneider ElectricEasergy MiCOM P30P633 version P633.680.700 onlyaffected
Schneider ElectricEasergy MiCOM P30P634 version P634.680.700 onlyaffected
Schneider ElectricEasergy MiCOM P30P138 version prior to P138.677.700affected
Schneider ElectricEasergy MiCOM P30P436 version prior to P436.677.701affected
Schneider ElectricEasergy MiCOM P30P438 version prior to P438.677.701affected
Schneider ElectricEasergy MiCOM P30P638 version prior to P638.677.700affected
Schneider ElectricEasergy MiCOM P30C434 version prior to C434.679.700affected
Schneider ElectricEasergy MiCOM P40Series model numbers with Protocol Option bit as G, H or L and all firmware versionsaffected
Schneider ElectricEcoStruxure™ Power Automation System Gateway (EPAS-GTW)Version 6.4.616.200.100 and prioraffected
Schneider ElectricEcoStruxure™ Power Automation System User Interface (EPAS-UI)Version 3.0.3 and prioraffected
Schneider ElectricEcoStruxure™ Power OperationVersion 2022 CU6 and prioraffected
Schneider ElectricEcoStruxure™ Power OperationVersion 2024 CU2 and prioraffected
Schneider ElectriciPMFLSVersion 64.2025.0.13 and prioraffected
Schneider ElectricPowerLogic™ P5 Protection RelayV02.502.103 and prioraffected
Schneider ElectricPowerLogic™ P7 Protection and Control PlatformV02.002.002 and prioraffected
Schneider ElectricPowerLogic™ T300Version 2.9.4 and prioraffected
Schneider ElectricPowerLogic™ T500Version 11.08.02 and prioraffected
Schneider ElectricSaitel DPVersion 11.06.36 and prioraffected
Schneider ElectricEasyLogic T150 (formerly Saitel DR)Version 11.06.30 and prioraffected

Weaknesses

  • CWE-331: CWE-331 Insufficient entropy

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: total

References