FKIE_CVE-2021-35951

Vulnerability from fkie_nvd - Published: 2022-12-26 06:15 - Updated: 2026-06-17 03:57
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
fastrack Reflex 2.0 W307S_REFLEX_v90.89 Activity Tracker allows an Unauthenticated Remote attacker to send a malicious firmware update via BLE and brick the device.
References
cve@mitre.orghttps://payatu.com/advisory/fastrack-reflex-unauthenticated-firmware-updateThird Party Advisory
cve@mitre.orghttps://www.fastrack.in/shop/watch-smart-wearables-reflex-2Permissions Required
af854a3a-2127-422b-91ae-364da2661108https://payatu.com/advisory/fastrack-reflex-unauthenticated-firmware-updateThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.fastrack.in/shop/watch-smart-wearables-reflex-2Permissions Required
Impacted products
Vendor Product Version
fastrack reflex_2.0_firmware 90.89
fastrack reflex_2.0 -
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
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          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:fastrack:reflex_2.0_firmware:90.89:*:*:*:*:*:*:*",
              "matchCriteriaId": "EE456490-17F2-47BD-81AD-ECFDC8407571",
              "vulnerable": true
            }
          ],
          "negate": false,
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              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "fastrack Reflex 2.0 W307S_REFLEX_v90.89 Activity Tracker allows an Unauthenticated Remote attacker to send a malicious firmware update via BLE and brick the device."
    },
    {
      "lang": "es",
      "value": "fastrack Reflex 2.0 W307S_REFLEX_v90.89 Activity Tracker permite a un atacante remoto no autenticado enviar una actualizaci\u00f3n de firmware maliciosa a trav\u00e9s de BLE y bloquear el dispositivo."
    }
  ],
  "id": "CVE-2021-35951",
  "lastModified": "2026-06-17T03:57:59.350",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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        "impactScore": 3.6,
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          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
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        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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    "ssvcV203": [
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        "ssvcData": {
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          "options": [
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              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
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          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-04-14T14:49:17.526849Z",
          "version": "2.0.3"
        }
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  },
  "published": "2022-12-26T06:15:09.770",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
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      ],
      "url": "https://payatu.com/advisory/fastrack-reflex-unauthenticated-firmware-update"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
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      ],
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "tags": [
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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