FKIE_CVE-2021-34573

Vulnerability from fkie_nvd - Published: 2021-09-16 13:15 - Updated: 2026-06-17 03:56
Severity
6.2 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Summary
In Enbra EWM in Version 1.7.29 together with several tested wireless M-Bus Sensors the events backflow and "no flow" are not reconized or misinterpreted. This may lead to wrong values and missing events.
References
info@cert.vde.comhttps://www.fit.vutbr.cz/~polcak/CVE-2021-34573.enThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.fit.vutbr.cz/~polcak/CVE-2021-34573.enThird Party Advisory
Impacted products
Vendor Product Version
enbra ewm 1.7.29
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "AT-WMBUS-16-2",
          "vendor": "Enbra",
          "versions": [
            {
              "status": "affected",
              "version": "all"
            }
          ]
        },
        {
          "product": "ER-AM DN 15",
          "vendor": "Enbra",
          "versions": [
            {
              "status": "affected",
              "version": "ER-AM DN 15/SV all"
            },
            {
              "status": "affected",
              "version": "ER-AM DN 15/TV all"
            }
          ]
        },
        {
          "product": "EWM 1.7.29",
          "vendor": "Enbra",
          "versions": [
            {
              "status": "affected",
              "version": "03.11.2019"
            }
          ]
        }
      ],
      "source": "info@cert.vde.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:enbra:ewm:1.7.29:*:*:*:*:*:*:*",
              "matchCriteriaId": "C983990C-D1DE-42C2-B6A2-8D9BD0B5A4FF",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Enbra EWM in Version 1.7.29 together with several tested wireless M-Bus Sensors the events backflow and \"no flow\" are not reconized or misinterpreted. This may lead to wrong values and missing events."
    },
    {
      "lang": "es",
      "value": "En Enbra EWM versi\u00f3n 1.7.29, junto con varios sensores inal\u00e1mbricos M-Bus probados, los eventos backflow  y \"no flow\" no son reconocidos o son interpretados err\u00f3neamente. Esto puede conllevar a valores err\u00f3neos y eventos perdidos"
    }
  ],
  "id": "CVE-2021-34573",
  "lastModified": "2026-06-17T03:56:09.273",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 2.1,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 6.2,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.5,
        "impactScore": 3.6,
        "source": "info@cert.vde.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-09-16T13:15:14.557",
  "references": [
    {
      "source": "info@cert.vde.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.fit.vutbr.cz/~polcak/CVE-2021-34573.en"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.fit.vutbr.cz/~polcak/CVE-2021-34573.en"
    }
  ],
  "sourceIdentifier": "info@cert.vde.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-682"
        }
      ],
      "source": "info@cert.vde.com",
      "type": "Secondary"
    }
  ]
}



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