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CVE-2021-20726

Estado: ModificadaAlta (7.8)—

Untrusted search path vulnerability in The Installer of Overwolf 2.168.0.n and earlier allows an attacker to gain privileges and execute arbitrary code with the privilege of the user invoking the installer via a Trojan horse DLL in an unspecified directory.

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)

Overwolf — Overwolf

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-20726",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.4,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/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": 3.4,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "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": "vultures@jpcert.or.jp",
      "affectedData": [
        {
          "vendor": "Overwolf Ltd.",
          "product": "The Installer of Overwolf",
          "versions": [
            {
              "status": "affected",
              "version": "2.168.0.n and earlier"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-05-24T04:15:15.043",
  "references": [
    {
      "url": "https://jvn.jp/en/jp/JVN78254777/index.html",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "vultures@jpcert.or.jp"
    },
    {
      "url": "https://www.overwolf.com/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "vultures@jpcert.or.jp"
    },
    {
      "url": "https://jvn.jp/en/jp/JVN78254777/index.html",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.overwolf.com/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-427"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Untrusted search path vulnerability in The Installer of Overwolf 2.168.0.n and earlier allows an attacker to gain privileges and execute arbitrary code with the privilege of the user invoking the installer via a Trojan horse DLL in an unspecified directory."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de ruta de búsqueda no confiable en The Installer of Overwolf versiones 2.168.0.n y anteriores, permite a un atacante obtener privilegios y ejecutar código arbitrario con el privilegio del usuario que invoca al instalador por medio de una DLL de tipo caballo de Troya en un directorio no especificado"
    }
  ],
  "lastModified": "2026-06-17T03:34:19.650",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:overwolf:overwolf:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4D8D7065-1B9C-4A29-A2DE-12BB6E2FDEA2",
              "versionEndIncluding": "2.168.0.n"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "vultures@jpcert.or.jp"
}