# Insufficient Entropy vulnerability on Multiple Products CVE record · `CVE-2026-4827` - **Identifiers:** `CVE-2026-4827` - **State:** Confirmed - **Severity:** CVSS 8.7 High - **Critical:** No - **CNA:** schneider - **Weakness (CWE):** [CWE-331](https://cwe.mitre.org/data/definitions/331.html) - **Tags:** [CWE-331](https://agentprime.io/advisories/tag/cwe-331.md) - **Technologies:** [Schneider Electric Easergy MiCOM C264](https://agentprime.io/advisories/technology/schneider-electric-easergy-micom-c264.md) · [Schneider Electric Easergy C5](https://agentprime.io/advisories/technology/schneider-electric-easergy-c5.md) · [Schneider Electric Easergy MiCOM P30](https://agentprime.io/advisories/technology/schneider-electric-easergy-micom-p30.md) · [Schneider Electric Easergy MiCOM P40](https://agentprime.io/advisories/technology/schneider-electric-easergy-micom-p40.md) · [Schneider Electric EcoStruxure™ Power Automation System Gateway (EPAS-GTW)](https://agentprime.io/advisories/technology/schneider-electric-ecostruxuretm-power-automation-system-gateway-epas-gtw.md) · [Schneider Electric EcoStruxure™ Power Automation System User Interface (EPAS-UI)](https://agentprime.io/advisories/technology/schneider-electric-ecostruxuretm-power-automation-system-user-interface-epas-ui.md) · [Schneider Electric EcoStruxure™ Power Operation](https://agentprime.io/advisories/technology/schneider-electric-ecostruxuretm-power-operation.md) · [Schneider Electric iPMFLS](https://agentprime.io/advisories/technology/schneider-electric-ipmfls.md) · [Schneider Electric PowerLogic™ P5 Protection Relay](https://agentprime.io/advisories/technology/schneider-electric-powerlogictm-p5-protection-relay.md) · [Schneider Electric PowerLogic™ P7 Protection and Control Platform](https://agentprime.io/advisories/technology/schneider-electric-powerlogictm-p7-protection-and-control-platform.md) · [Schneider Electric PowerLogic™ T300](https://agentprime.io/advisories/technology/schneider-electric-powerlogictm-t300.md) · [Schneider Electric PowerLogic™ T500](https://agentprime.io/advisories/technology/schneider-electric-powerlogictm-t500.md) · [Schneider Electric Saitel DP](https://agentprime.io/advisories/technology/schneider-electric-saitel-dp.md) · [Schneider Electric EasyLogic T150 (formerly Saitel DR)](https://agentprime.io/advisories/technology/schneider-electric-easylogic-t150-formerly-saitel-dr.md) - **Published:** 12 May 2026 - **Updated:** 14 May 2026 - **Reviewed by a person:** No 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 - Vendor: Schneider Electric. Product: Easergy MiCOM C264. - affected: `Versions D6.x` - affected: `Versions D7.33 and prior` - Other versions: unaffected - Vendor: Schneider Electric. Product: Easergy C5. - affected: `Version 1.1.17 and prior` - Other versions: unaffected - Vendor: Schneider Electric. Product: 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 - Vendor: Schneider Electric. Product: Easergy MiCOM P40. - affected: `Series model numbers with Protocol Option bit as G, H or L and all firmware versions` - Other versions: unaffected - Vendor: Schneider Electric. Product: EcoStruxure™ Power Automation System Gateway (EPAS-GTW). - affected: `Version 6.4.616.200.100 and prior` - Other versions: unaffected - Vendor: Schneider Electric. Product: EcoStruxure™ Power Automation System User Interface (EPAS-UI). - affected: `Version 3.0.3 and prior` - Other versions: unaffected - Vendor: Schneider Electric. Product: EcoStruxure™ Power Operation. - affected: `Version 2022 CU6 and prior` - affected: `Version 2024 CU2 and prior` - Other versions: unaffected - Vendor: Schneider Electric. Product: iPMFLS. - affected: `Version 64.2025.0.13 and prior` - Other versions: unaffected - Vendor: Schneider Electric. Product: PowerLogic™ P5 Protection Relay. - affected: `V02.502.103 and prior` - Other versions: unaffected - Vendor: Schneider Electric. Product: PowerLogic™ P7 Protection and Control Platform. - affected: `V02.002.002 and prior` - Other versions: unaffected - Vendor: Schneider Electric. Product: PowerLogic™ T300. - affected: `Version 2.9.4 and prior` - Other versions: unaffected - Vendor: Schneider Electric. Product: PowerLogic™ T500. - affected: `Version 11.08.02 and prior` - Other versions: unaffected - Vendor: Schneider Electric. Product: Saitel DP. - affected: `Version 11.06.36 and prior` - Other versions: unaffected - Vendor: Schneider Electric. Product: EasyLogic T150 (formerly Saitel DR). - affected: `Version 11.06.30 and prior` - Other versions: unaffected ## 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 - 8.7 High, CVSS 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`, from 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 - [CVE List: CVE-2026-4827](https://www.cve.org/CVERecord?id=CVE-2026-4827) - [NVD: CVE-2026-4827](https://nvd.nist.gov/vuln/detail/CVE-2026-4827) ### 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. ## Check whether this affects you This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run. - With the agentprime MCP server (), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: - As JSON: - Everything that needs attention now: --- The web page: . Everything for agents: .