CVE record · CVE-2026-4827

Insufficient Entropy vulnerability on Multiple Products

CVSS 8.7 HighEPSS 0.0031 · 24th percentile

Published by the CVE Program (CNA: schneider) at 12 May 2026, 12:24 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
Schneider Electric Easergy MiCOM C264
  • affected Versions D6.x
  • affected Versions D7.33 and prior
Other versions: unaffected
Schneider Electric Easergy C5
  • affected Version 1.1.17 and prior
Other versions: unaffected
Schneider Electric Easergy MiCOM P30
  • affected P139 version prior to P139.678.700
  • affected P437 version prior to P437.678.700
  • affected P439 version prior to P439.678.700
  • affected P532 version prior to P532.678.700
  • affected P539 version prior to P539.678.700
  • affected P631 version prior to P631.678.700
  • affected P632 version prior to P632.678.700
  • affected P633 version prior to P633.678.700
  • affected P634 version prior to P634.678.700
  • affected P633 version P633.680.700 only
  • affected P634 version P634.680.700 only
  • affected P138 version prior to P138.677.700
  • and 4 more
Other versions: unaffected
Schneider Electric Easergy MiCOM P40
  • affected Series model numbers with Protocol Option bit as G, H or L and all firmware versions
Other versions: unaffected
Schneider Electric EcoStruxure™ Power Automation System Gateway (EPAS-GTW)
  • affected Version 6.4.616.200.100 and prior
Other versions: unaffected
Schneider Electric EcoStruxure™ Power Automation System User Interface (EPAS-UI)
  • affected Version 3.0.3 and prior
Other versions: unaffected
Schneider Electric EcoStruxure™ Power Operation
  • affected Version 2022 CU6 and prior
  • affected Version 2024 CU2 and prior
Other versions: unaffected
Schneider Electric iPMFLS
  • affected Version 64.2025.0.13 and prior
Other versions: unaffected
Schneider Electric PowerLogic™ P5 Protection Relay
  • affected V02.502.103 and prior
Other versions: unaffected
Schneider Electric PowerLogic™ P7 Protection and Control Platform
  • affected V02.002.002 and prior
Other versions: unaffected
Schneider Electric PowerLogic™ T300
  • affected Version 2.9.4 and prior
Other versions: unaffected
Schneider Electric PowerLogic™ T500
  • affected Version 11.08.02 and prior
Other versions: unaffected
Schneider Electric Saitel DP
  • affected Version 11.06.36 and prior
Other versions: unaffected
Schneider Electric EasyLogic T150 (formerly Saitel DR)
  • affected Version 11.06.30 and prior
Other versions: unaffected
Identifiers
CVE-2026-4827
CNA
schneider
Weakness (CWE)
CWE-331
Published
12 May 2026
Updated
14 May 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.7 High 4.0 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 CNA (schneider)
  • CISA KEV Not listed.
  • EPSS 0.0031, the 24th percentile, on 7 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 12 May 2026. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.