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CVE-2016-2521

Status: ModifiedHigh (7.8)—

Untrusted search path vulnerability in the WiresharkApplication class in ui/qt/wireshark_application.cpp in Wireshark 1.12.x before 1.12.10 and 2.0.x before 2.0.2 on Windows allows local users to gain privileges via a Trojan horse riched20.dll.dll file in the current working directory, related to use of QLibrary.

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)

Wireshark — Wireshark

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2016-2521",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.2,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2016-02-28T04:59:00.120",
  "references": [
    {
      "url": "http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securitytracker.com/id/1035118",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.wireshark.org/security/wnpa-sec-2016-01.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=4a79cf2e1ab056faaddd252aa56520435b318a56",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://security.gentoo.org/glsa/201604-05",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1035118",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.wireshark.org/security/wnpa-sec-2016-01.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=4a79cf2e1ab056faaddd252aa56520435b318a56",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.gentoo.org/glsa/201604-05",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-264"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Untrusted search path vulnerability in the WiresharkApplication class in ui/qt/wireshark_application.cpp in Wireshark 1.12.x before 1.12.10 and 2.0.x before 2.0.2 on Windows allows local users to gain privileges via a Trojan horse riched20.dll.dll file in the current working directory, related to use of QLibrary."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de ruta de búsqueda no confiable en la clase WiresharkApplication en ui/qt/wireshark_application.cpp en Wireshark 1.12.x en versiones anteriores a 1.12.10 y 2.0.x en versiones anteriores a 2.0.2 en Windows permite a usuarios locales obtener privilegios a través de un archivo Troyano riched20.dll.dll en el directorio de trabajo actual, relacionado con el uso de QLibrary."
    }
  ],
  "lastModified": "2026-06-17T00:44:13.033",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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            },
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            },
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              "matchCriteriaId": "1946DDC9-E49F-4601-8448-E73B0480C880"
            },
            {
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              "vulnerable": true,
              "matchCriteriaId": "E2F85560-F43E-46C5-9CD1-1A1D66E21580"
            },
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          "operator": "OR"
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  "sourceIdentifier": "cve@mitre.org"
}