01 Record
CVE-2026-4827
Insufficient Entropy vulnerability on Multiple Products
HighPUBLISHEDCNA: schneider
CNA base score8.7 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
02 Description
Insufficient Entropy vulnerability on Multiple Products
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 0.31% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 23.8% of scored records. A rank, not a probability.
- NVD base score
- 8.7 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS vector
- 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
- NVD analysis status
- Awaiting Analysis. NVD last modified this record on 2026-10-26.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-05-12 12:24Z5 MO AGO
- Last updated
- 2026-05-14 17:38Z5 MO AGO
- Reserved
- 2026-03-25
- Assigning CNA
- schneider
- Record state
- PUBLISHED
- Severity
- High (CVSS 8.7)
- CNA CVSS vector
- 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
- Weaknesses
- CWE-331Insufficient EntropyBase
- Data version
- 5.2
- Document digest
- 4a24884c9cb65e99b175d36bfed1fdd5c5cf9106b3a09188f64ac4c140de3c23
05 Affected products
VendorProductVersionsPlatforms
Schneider ElectricEasergy MiCOM P30P139 version prior to P139.678.700, P437 version prior to P437.678.700, P439 version prior to P439.678.700, P532 version prior to P532.678.700, P539 version prior to P539.678.700, P631 version prior to P631.678.700, P632 version prior to P632.678.700, P633 version prior to P633.678.700, P634 version prior to P634.678.700, P633 version P633.680.700 only, P634 version P634.680.700 only, P138 version prior to P138.677.700, P436 version prior to P436.677.701, P438 version prior to P438.677.701, P638 version prior to P638.677.700, C434 version prior to C434.679.700—
Schneider ElectricEasergy MiCOM P40Series model numbers with Protocol Option bit as G, H or L and all firmware versions—
Schneider ElectricEcoStruxure™ Power Automation System Gateway (EPAS-GTW)Version 6.4.616.200.100 and prior—
Schneider ElectricEcoStruxure™ Power Automation System User Interface (EPAS-UI)Version 3.0.3 and prior—
Schneider ElectricEcoStruxure™ Power OperationVersion 2022 CU6 and prior, Version 2024 CU2 and prior—