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CVE-2023-6533

Status: AnalyzedMedium (6.5)—

Malformed Device Reset Locally Command Class packets can be sent to the controller, causing the controller to assume the end device has left the network. After this, frames sent by the end device will not be acknowledged by the controller. This vulnerability exists in PC Controller v5.54.0, and earlier.

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)

Silabs — Z-wave Pc-based Controller

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2023-6533",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-6533",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-02-22T15:48:15.722979Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "product-security@silabs.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "ADJACENT_NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "ADJACENT_NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "product-security@silabs.com",
      "affectedData": [
        {
          "repo": "https://github.com/SiliconLabs/gecko_sdk/releases",
          "vendor": "silabs.com",
          "product": "PC Controller",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "versionType": "LessThan",
              "lessThanOrEqual": "5.54.0"
            }
          ],
          "packageName": "PC Controller",
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2024-02-21T20:15:46.283",
  "references": [
    {
      "url": "https://community.silabs.com/068Vm000001HdNm",
      "tags": [
        "Permissions Required"
      ],
      "source": "product-security@silabs.com"
    },
    {
      "url": "https://community.silabs.com/068Vm000001HdNm",
      "tags": [
        "Permissions Required"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "product-security@silabs.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-248"
        },
        {
          "lang": "en",
          "value": "CWE-419"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Malformed Device Reset Locally Command Class packets can be sent to the controller, causing the controller to assume the end device has left the network. After this, frames sent by the end device will not be acknowledged by the controller. This vulnerability exists in PC Controller v5.54.0, and earlier."
    },
    {
      "lang": "es",
      "value": "Se pueden enviar paquetes de clase de comando de reinicio local de dispositivo con formato incorrecto al controlador, lo que hace que el controlador asuma que el dispositivo final ha abandonado la red. Después de esto, el controlador no reconocerá las tramas enviadas por el dispositivo final. Esta vulnerabilidad existe en PC Controller v5.54.0 y versiones anteriores."
    }
  ],
  "lastModified": "2026-06-17T06:50:56.037",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:silabs:z-wave_pc-based_controller:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0ACB7BA3-6720-44E9-A822-F4673C4B81A9",
              "versionEndIncluding": "5.54"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "product-security@silabs.com"
}