Insufficient Entropy vulnerability on Multiple Products
Summary
| CVE | CVE-2026-4827 |
|---|---|
| State | PUBLISHED |
| Assigner | schneider |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-05-12 13:17:35 UTC |
| Updated | 2026-05-14 18:16:50 UTC |
| 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. |
Risk And Classification
Primary CVSS: v4.0 8.7 HIGH from [email protected]
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
EPSS: 0.000660000 probability, percentile 0.203910000 (date 2026-05-25)
Problem Types: CWE-331 | CWE-331 CWE-331 Insufficient entropy
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 8.7 | HIGH | 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/C... |
| 4.0 | CNA | CVSS | 8.7 | HIGH | 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 |
CVSS v4.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowAttack Requirements
NonePrivileges Required
NoneUser Interaction
PassiveConfidentiality
HighIntegrity
HighAvailability
LowSub Conf.
NoneSub Integrity
NoneSub Availability
NoneCVSS: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
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Schneider Electric | Easergy MiCOM C264 | affected Versions D6.x | Not specified |
| CNA | Schneider Electric | Easergy MiCOM C264 | affected Versions D7.33 and prior | Not specified |
| CNA | Schneider Electric | Easergy C5 | affected Version 1.1.17 and prior | Not specified |
| CNA | Schneider Electric | Easergy MiCOM P30 | affected P139 version prior to P139.678.700 | Not specified |
| CNA | Schneider Electric | Easergy MiCOM P30 | affected P437 version prior to P437.678.700 | Not specified |
| CNA | Schneider Electric | Easergy MiCOM P30 | affected P439 version prior to P439.678.700 | Not specified |
| CNA | Schneider Electric | Easergy MiCOM P30 | affected P532 version prior to P532.678.700 | Not specified |
| CNA | Schneider Electric | Easergy MiCOM P30 | affected P539 version prior to P539.678.700 | Not specified |
| CNA | Schneider Electric | Easergy MiCOM P30 | affected P631 version prior to P631.678.700 | Not specified |
| CNA | Schneider Electric | Easergy MiCOM P30 | affected P632 version prior to P632.678.700 | Not specified |
| CNA | Schneider Electric | Easergy MiCOM P30 | affected P633 version prior to P633.678.700 | Not specified |
| CNA | Schneider Electric | Easergy MiCOM P30 | affected P634 version prior to P634.678.700 | Not specified |
| CNA | Schneider Electric | Easergy MiCOM P30 | affected P633 version P633.680.700 only | Not specified |
| CNA | Schneider Electric | Easergy MiCOM P30 | affected P634 version P634.680.700 only | Not specified |
| CNA | Schneider Electric | Easergy MiCOM P30 | affected P138 version prior to P138.677.700 | Not specified |
| CNA | Schneider Electric | Easergy MiCOM P30 | affected P436 version prior to P436.677.701 | Not specified |
| CNA | Schneider Electric | Easergy MiCOM P30 | affected P438 version prior to P438.677.701 | Not specified |
| CNA | Schneider Electric | Easergy MiCOM P30 | affected P638 version prior to P638.677.700 | Not specified |
| CNA | Schneider Electric | Easergy MiCOM P30 | affected C434 version prior to C434.679.700 | Not specified |
| CNA | Schneider Electric | Easergy MiCOM P40 | affected Series model numbers with Protocol Option bit as G, H or L and all firmware versions | Not specified |
| CNA | Schneider Electric | EcoStruxure Power Automation System Gateway EPAS-GTW | affected Version 6.4.616.200.100 and prior | Not specified |
| CNA | Schneider Electric | EcoStruxure Power Automation System User Interface EPAS-UI | affected Version 3.0.3 and prior | Not specified |
| CNA | Schneider Electric | EcoStruxure Power Operation | affected Version 2022 CU6 and prior | Not specified |
| CNA | Schneider Electric | EcoStruxure Power Operation | affected Version 2024 CU2 and prior | Not specified |
| CNA | Schneider Electric | IPMFLS | affected Version 64.2025.0.13 and prior | Not specified |
| CNA | Schneider Electric | PowerLogic P5 Protection Relay | affected V02.502.103 and prior | Not specified |
| CNA | Schneider Electric | PowerLogic P7 Protection And Control Platform | affected V02.002.002 and prior | Not specified |
| CNA | Schneider Electric | PowerLogic T300 | affected Version 2.9.4 and prior | Not specified |
| CNA | Schneider Electric | PowerLogic T500 | affected Version 11.08.02 and prior | Not specified |
| CNA | Schneider Electric | Saitel DP | affected Version 11.06.36 and prior | Not specified |
| CNA | Schneider Electric | EasyLogic T150 Formerly Saitel DR | affected Version 11.06.30 and prior | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| download.schneider-electric.com/files | [email protected] | download.schneider-electric.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.