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CVE-2020-7561

Status: ModifiedCritical (9.8)—

A CWE-306: Missing Authentication for Critical Function vulnerability exists in Easergy T300 (with firmware 2.7 and older) that could cause a wide range of problems, including information exposure, denial of service, and command execution when access to a resource from an attacker is not restricted or incorrectly restricted.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Schneider-electric — Easergy T300 Firmware

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2020-7561",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
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        "obtainAllPrivilege": false,
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        "obtainUserPrivilege": false,
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          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
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      "affectedData": [
        {
          "vendor": "n/a",
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          "versions": [
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              "status": "affected",
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  ],
  "published": "2020-11-19T22:15:14.880",
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Secondary",
      "source": "cybersecurity@se.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-284"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-306"
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      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A CWE-306: Missing Authentication for Critical Function vulnerability exists in Easergy T300 (with firmware 2.7 and older) that could cause a wide range of problems, including information exposure, denial of service, and command execution when access to a resource from an attacker is not restricted or incorrectly restricted."
    },
    {
      "lang": "es",
      "value": "CWE-306: Falta de Autenticación para funciones críticas existe una vulnerabilidad en el Easergy T300 (con firmware 2.7 y anterior) que podría causar una amplia gama de problemas, incluyendo la exposición de información, la denegación de servicio y la ejecución de comandos cuando el acceso a un recurso de un atacante no está restringido o está restringido incorrectamente"
    }
  ],
  "lastModified": "2026-06-17T03:25:00.707",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "versionEndIncluding": "2.7"
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  "sourceIdentifier": "cybersecurity@se.com"
}