Vulnerability-Lookup

CVE-2026-4827 (GCVE-0-2026-4827)

Vulnerability from cvelistv5 – Published: 2026-05-12 12:24 – Updated: 2026-05-14 17:38

Title

Insufficient Entropy vulnerability on Multiple Products

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.

Severity

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

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-12 12:39 UTC

CWE

CWE-331 - Insufficient entropy

Assigner

schneider CNA under the mitre root

CNA scorecard C 65/100 over 23 records in the last 180 days details

References

1 reference

URL	Tags
https://download.schneider-electric.com/files?p_D…

Impacted products

14 products

Vendor	Product	Version	CPE status
Schneider Electric	Easergy MiCOM C264	Affected: Versions D6.x Affected: Versions D7.33 and prior	guessed
Schneider Electric	Easergy C5	Affected: Version 1.1.17 and prior	guessed
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 Affected: P436 version prior to P436.677.701 Affected: P438 version prior to P438.677.701 Affected: P638 version prior to P638.677.700 Affected: C434 version prior to C434.679.700	guessed
Schneider Electric	Easergy MiCOM P40	Affected: Series model numbers with Protocol Option bit as G, H or L and all firmware versions	guessed
Schneider Electric	EcoStruxure™ Power Automation System Gateway (EPAS-GTW)	Affected: Version 6.4.616.200.100 and prior	guessed
Schneider Electric	EcoStruxure™ Power Automation System User Interface (EPAS-UI)	Affected: Version 3.0.3 and prior	guessed
Schneider Electric	EcoStruxure™ Power Operation	Affected: Version 2022 CU6 and prior Affected: Version 2024 CU2 and prior	guessed
Schneider Electric	iPMFLS	Affected: Version 64.2025.0.13 and prior	guessed
Schneider Electric	PowerLogic™ P5 Protection Relay	Affected: V02.502.103 and prior	guessed
Schneider Electric	PowerLogic™ P7 Protection and Control Platform	Affected: V02.002.002 and prior	guessed
Schneider Electric	PowerLogic™ T300	Affected: Version 2.9.4 and prior	guessed
Schneider Electric	PowerLogic™ T500	Affected: Version 11.08.02 and prior	guessed
Schneider Electric	Saitel DP	Affected: Version 11.06.36 and prior	guessed
Schneider Electric	EasyLogic T150 (formerly Saitel DR)	Affected: Version 11.06.30 and prior	guessed

Date Public

2026-05-12 16:49

Show details on NVD website

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                {
                  "status": "affected",
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                {
                  "status": "affected",
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                  "status": "affected",
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                {
                  "status": "affected",
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              "defaultStatus": "unaffected",
              "product": "EcoStruxure\u2122 Power Operation",
              "vendor": "Schneider Electric",
              "versions": [
                {
                  "status": "affected",
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                },
                {
                  "status": "affected",
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              ]
            },
            {
              "defaultStatus": "unaffected",
              "product": "iPMFLS",
              "vendor": "Schneider Electric",
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                {
                  "status": "affected",
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              "defaultStatus": "unaffected",
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              "product": "PowerLogic\u2122 P7 Protection and Control Platform",
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}

CERTFR-2026-AVI-0566

Vulnerability from certfr_avis - Published: 2026-05-12 - Updated: 2026-05-12

De multiples vulnérabilités ont été découvertes dans les produits Schneider Electric. Certaines d'entre elles permettent à un attaquant de provoquer une élévation de privilèges, une atteinte à la confidentialité des données et une atteinte à l'intégrité des données.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

None

Impacted products

Vendor	Product	Description
Schneider Electric	N/A	EcoStruxure Power Automation System Gateway (EPAS-GTW) versions antérieures ou égales à 6.4.616.200.100
Schneider Electric	N/A	Easergy MiCOM P532 vers:generic/ versions antérieures ou égales à P532.678.700 pour la vulnérabilité CVE-2026-4827
Schneider Electric	N/A	EcoStruxure Process Expert 2023 versions antérieures à 4.8.0.5715
Schneider Electric	N/A	Easergy MiCOM P634 versions antérieures à P634.680.700
Schneider Electric	N/A	EcoStruxure Panel Server PAS800V2 versions antérieures ou égales à 002.005.000
Schneider Electric	N/A	Easergy MiCOM P138 vers:generic/ versions antérieures ou égales à P138.677.700
Schneider Electric	N/A	Easergy MiCOM P40 Series toutes versions pour la vulnérabilité CVE-2026-4827
Schneider Electric	N/A	Easergy MiCOM P631 vers:generic/ versions antérieures ou égales à P631.678.700 pour la vulnérabilité CVE-2026-4827
Schneider Electric	N/A	Easergy MiCOM P638 vers:generic/ versions antérieures ou égales à P638.677.700 pour la vulnérabilité CVE-2026-4827
Schneider Electric	N/A	EcoStruxure Process Expert for AVEVA System Platform versions antérieures à 2023
Schneider Electric	N/A	Easergy MiCOM P632 vers:generic/ versions antérieures ou égales à P632.678.700
Schneider Electric	N/A	EcoStruxure Power Automation System User Interface (EPAS-UI) versions antérieures ou égales à 3.0.3 pour la vulnérabilité CVE-2026-4827
Schneider Electric	N/A	Easergy MiCOM P539 vers:generic/ versions antérieures ou égales à P539.678.700
Schneider Electric	N/A	Easergy MiCOM P634 vers:generic/ versions antérieures ou égales à P634.678.700
Schneider Electric	N/A	Easergy MiCOM P436 vers:generic/ versions antérieures ou égales à P436.677.701 pour la vulnérabilité CVE-2026-4827
Schneider Electric	N/A	Easergy MiCOM C264 vers:generic/ versions antérieures ou égales à D7.33
Schneider Electric	N/A	Easergy MiCOM P439 vers:generic/ versions antérieures ou égales à P439.678.700
Schneider Electric	N/A	EcoStruxure Panel Server PAS600 versions antérieures ou égales à 002.005.000
Schneider Electric	N/A	Easergy C5 versions antérieures ou égales à 1.1.17
Schneider Electric	N/A	Easergy MiCOM P139 vers:generic/ versions antérieures ou égales à P139.678.700 pour la vulnérabilité CVE-2026-4827
Schneider Electric	N/A	Easergy MiCOM P437 vers:generic/ versions antérieures ou égales à P437.678.700 pour la vulnérabilité CVE-2026-4827
Schneider Electric	N/A	Easergy MiCOM P438 vers:generic/ versions antérieures ou égales à P438.677.701 pour la vulnérabilité CVE-2026-4827
Schneider Electric	N/A	EcoStruxure Panel Server PAS400 versions antérieures ou égales à 002.005.000
Schneider Electric	N/A	EcoStruxure Panel Server PAS600V2 versions antérieures ou égales à 002.005.000
Schneider Electric	N/A	Easergy MiCOM C434 vers:generic/ versions antérieures ou égales à C434.679.700
Schneider Electric	N/A	Ecostruxure Machine Expert HVAC versions antérieures à 1.10.0
Schneider Electric	N/A	EcoStruxure Process Expert versions antérieures à 2020 R2 pour la vulnérabilité CVE-2025-0327
Schneider Electric	N/A	EcoStruxure Process Expert for AVEVA System Platform versions antérieures à 2021
Schneider Electric	N/A	Easergy MiCOM P633 versions antérieures à P633.680.700
Schneider Electric	N/A	EcoStruxure Process Expert for AVEVA System Platform versions antérieures à 2020 R2
Schneider Electric	N/A	EcoStruxure Power Operation vers:generic/ versions antérieures ou égales à 2024 CU2
Schneider Electric	N/A	EcoStruxure Power Operation vers:generic/ versions antérieures ou égales à 2022 CU6
Schneider Electric	N/A	Easergy MiCOM P633 vers:generic/ versions antérieures ou égales à P633.678.700
Schneider Electric	N/A	EcoStruxure Panel Server PAS800 versions antérieures ou égales à 002.005.000
Schneider Electric	N/A	EcoStruxure Process Expert versions antérieures à 2021 pour la vulnérabilité CVE-2025-0327

References

Title

Publication Time

FKIE_CVE-2026-4827

Vulnerability from fkie_nvd - Published: 2026-05-12 13:17 - Updated: 2026-10-26 18:10

Severity

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

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.

References

	URL	Tags
	cybersecurity@se.com	https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-132-02&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2026-132-02.pdf

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Easergy MiCOM C264",
          "vendor": "Schneider Electric",
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            {
              "status": "affected",
              "version": "Versions D6.x"
            },
            {
              "status": "affected",
              "version": "Versions D7.33 and prior"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Easergy C5",
          "vendor": "Schneider Electric",
          "versions": [
            {
              "status": "affected",
              "version": "Version 1.1.17 and prior"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Easergy MiCOM P30",
          "vendor": "Schneider Electric",
          "versions": [
            {
              "status": "affected",
              "version": "P139 version prior to P139.678.700"
            },
            {
              "status": "affected",
              "version": "P437 version prior to P437.678.700"
            },
            {
              "status": "affected",
              "version": "P439 version prior to P439.678.700"
            },
            {
              "status": "affected",
              "version": "P532 version prior to P532.678.700"
            },
            {
              "status": "affected",
              "version": "P539 version prior to P539.678.700"
            },
            {
              "status": "affected",
              "version": "P631 version prior to P631.678.700"
            },
            {
              "status": "affected",
              "version": "P632 version prior to P632.678.700"
            },
            {
              "status": "affected",
              "version": "P633 version prior to P633.678.700"
            },
            {
              "status": "affected",
              "version": "P634 version prior to P634.678.700"
            },
            {
              "status": "affected",
              "version": "P633 version P633.680.700 only"
            },
            {
              "status": "affected",
              "version": "P634 version P634.680.700 only"
            },
            {
              "status": "affected",
              "version": "P138 version prior to P138.677.700"
            },
            {
              "status": "affected",
              "version": "P436 version prior to P436.677.701"
            },
            {
              "status": "affected",
              "version": "P438 version prior to P438.677.701"
            },
            {
              "status": "affected",
              "version": "P638 version prior to P638.677.700"
            },
            {
              "status": "affected",
              "version": "C434 version prior to C434.679.700"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Easergy MiCOM P40",
          "vendor": "Schneider Electric",
          "versions": [
            {
              "status": "affected",
              "version": "Series model numbers with Protocol Option bit as G, H or L and all firmware versions"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "EcoStruxure\u2122 Power Automation System Gateway (EPAS-GTW)",
          "vendor": "Schneider Electric",
          "versions": [
            {
              "status": "affected",
              "version": "Version 6.4.616.200.100 and prior"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "EcoStruxure\u2122 Power Automation System User Interface (EPAS-UI)",
          "vendor": "Schneider Electric",
          "versions": [
            {
              "status": "affected",
              "version": "Version 3.0.3 and prior"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "EcoStruxure\u2122 Power Operation",
          "vendor": "Schneider Electric",
          "versions": [
            {
              "status": "affected",
              "version": "Version 2022 CU6 and prior"
            },
            {
              "status": "affected",
              "version": "Version 2024 CU2 and prior"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "iPMFLS",
          "vendor": "Schneider Electric",
          "versions": [
            {
              "status": "affected",
              "version": "Version 64.2025.0.13 and prior"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "PowerLogic\u2122 P5 Protection Relay",
          "vendor": "Schneider Electric",
          "versions": [
            {
              "status": "affected",
              "version": "V02.502.103 and prior"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "PowerLogic\u2122 P7 Protection and Control Platform",
          "vendor": "Schneider Electric",
          "versions": [
            {
              "status": "affected",
              "version": "V02.002.002 and prior"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "PowerLogic\u2122 T300",
          "vendor": "Schneider Electric",
          "versions": [
            {
              "status": "affected",
              "version": "Version 2.9.4 and prior"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "PowerLogic\u2122 T500",
          "vendor": "Schneider Electric",
          "versions": [
            {
              "status": "affected",
              "version": "Version 11.08.02 and prior"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Saitel DP",
          "vendor": "Schneider Electric",
          "versions": [
            {
              "status": "affected",
              "version": "Version 11.06.36 and prior"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "EasyLogic T150 (formerly Saitel DR)",
          "vendor": "Schneider Electric",
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      "value": "CWE\u2011331: Insufficient Entropy vulnerability exists that could lead to unauthorized access when an attacker on the network can exploit weaknesses in session\u2011management protections."
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad CWE-331: Entrop\u00eda Insuficiente que podr\u00eda conducir a acceso no autorizado cuando un atacante en la red puede explotar debilidades en las protecciones de gesti\u00f3n de sesi\u00f3n."
    }
  ],
  "id": "CVE-2026-4827",
  "lastModified": "2026-10-26T18:10:00.173",
  "metrics": {
    "cvssMetricV40": [
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          "Recovery": "NOT_DEFINED",
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          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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          "modifiedSubIntegrityImpact": "NOT_DEFINED",
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    "ssvcV203": [
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          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-05-12T12:39:02.210471Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-05-12T13:17:35.510",
  "references": [
    {
      "source": "cybersecurity@se.com",
      "url": "https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-132-02\u0026p_enDocType=Security+and+Safety+Notice\u0026p_File_Name=SEVD-2026-132-02.pdf"
    }
  ],
  "sourceIdentifier": "cybersecurity@se.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-331"
        }
      ],
      "source": "cybersecurity@se.com",
      "type": "Secondary"
    }
  ]
}

GHSA-R6X4-QP59-VF35

Vulnerability from github – Published: 2026-05-12 15:31 – Updated: 2026-05-14 18:32

Details

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.

Severity

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

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-4827"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-331"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-12T13:17:35Z",
    "severity": "HIGH"
  },
  "details": "CWE\u2011331 Insufficient Entropy vulnerability exists that could lead to unauthorized access when an attacker on the network can exploit weaknesses in session\u2011management protections.",
  "id": "GHSA-r6x4-qp59-vf35",
  "modified": "2026-05-14T18:32:47Z",
  "published": "2026-05-12T15:31:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4827"
    },
    {
      "type": "WEB",
      "url": "https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-132-02\u0026p_enDocType=Security+and+Safety+Notice\u0026p_File_Name=SEVD-2026-132-02.pdf"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ]
}

ICSA-26-169-07

Vulnerability from csaf_cisa - Published: 2026-05-12 07:00 - Updated: 2026-09-03 06:00

Summary

Schneider Electric Easergy, EcoStruxture, PowerLogic, and Saitel Products (Update A)

Scope

1 vulnerability in this advisory, including CVE-2026-4827.

CVE-2026-4827

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.

8.3 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L

Fixed: 22 products Known affected: 30 products

https://community.se.com/t5/EcoStruxure-Power-Operation/Pow… https://community.se.com/t5/EcoStruxure-Power-Operation/Pow…

Open the full advisory

SEVD-2026-132-02

Vulnerability from csaf_se - Published: 2026-05-12 07:00 - Updated: 2026-08-25 07:00

Summary

Insufficient Entropy vulnerability on Multiple Products

Scope

1 vulnerability in this advisory, including CVE-2026-4827.

CVE-2026-4827

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.

8.3 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L

Fixed: 22 products Known affected: 30 products

https://community.se.com/t5/EcoStruxure-Power-Operation/Pow… https://community.se.com/t5/EcoStruxure-Power-Operation/Pow…

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-4827 (GCVE-0-2026-4827)

CERTFR-2026-AVI-0566

Solutions

FKIE_CVE-2026-4827

GHSA-R6X4-QP59-VF35

ICSA-26-169-07

SEVD-2026-132-02

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