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CVE-2021-43983

Estado: ModificadaAlta (7.8)—

WECON LeviStudioU Versions 2019-09-21 and prior are vulnerable to multiple stack-based buffer overflow instances while parsing project files, which may allow an attacker to execute arbitrary code.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

We-con — Levistudiou

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-43983",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "ics-cert@hq.dhs.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "ics-cert@hq.dhs.gov",
      "affectedData": [
        {
          "vendor": "WECON",
          "product": "LeviStudioU",
          "versions": [
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              "status": "affected",
              "version": "All",
              "versionType": "custom",
              "lessThanOrEqual": "2019-09-21"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-12-13T16:15:10.107",
  "references": [
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      "url": "https://www.zerodayinitiative.com/advisories/ZDI-22-039/",
      "tags": [
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    {
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      "tags": [
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    },
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      "url": "https://www.zerodayinitiative.com/advisories/ZDI-22-046/",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "ics-cert@hq.dhs.gov"
    },
    {
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-22-047/",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "ics-cert@hq.dhs.gov"
    },
    {
      "url": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-343-02",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
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      "url": "https://www.zerodayinitiative.com/advisories/ZDI-22-034/",
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        "VDB Entry"
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    {
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-22-041/",
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    {
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        "VDB Entry"
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    {
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-22-043/",
      "tags": [
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        "VDB Entry"
      ],
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    },
    {
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-22-044/",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-22-045/",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-22-046/",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-22-047/",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "ics-cert@hq.dhs.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-121"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "WECON LeviStudioU Versions 2019-09-21 and prior are vulnerable to multiple stack-based buffer overflow instances while parsing project files, which may allow an attacker to execute arbitrary code."
    },
    {
      "lang": "es",
      "value": "WECON LeviStudioU Versiones 21-09-2019 y anteriores, son vulnerables a múltiples instancias de desbordamiento de búfer en la región stack de la memoria mientras son analizados los archivos del proyecto, lo que puede permitir a un atacante ejecutar código arbitrario"
    }
  ],
  "lastModified": "2026-06-17T04:11:44.470",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:we-con:levistudiou:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "785416DE-0B73-41CD-AC5D-32EAC49045AF",
              "versionEndIncluding": "2019-09-21"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "ics-cert@hq.dhs.gov"
}