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CVE-2010-3966

Status: ModifiedHigh (9.3)—

Untrusted search path vulnerability in Microsoft Windows Server 2008 R2 and Windows 7, when BranchCache is supported, allows local users to gain privileges via a Trojan horse DLL in the current working directory, as demonstrated by a directory that contains an EML file, an RSS file, or a WPOST file, aka "BranchCache Insecure Library Loading Vulnerability."

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 (2)

Microsoft — Windows 7Microsoft — Windows Server 2008

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2010-3966",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 9.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2010-12-16T19:33:03.443",
  "references": [
    {
      "url": "http://osvdb.org/69816",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://secunia.com/advisories/42609",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/45295",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securitytracker.com/id?1024877",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.us-cert.gov/cas/techalerts/TA10-348A.html",
      "tags": [
        "US Government Resource"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2010/3218",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-095",
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12163",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://osvdb.org/69816",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/42609",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/45295",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id?1024877",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.us-cert.gov/cas/techalerts/TA10-348A.html",
      "tags": [
        "US Government Resource"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2010/3218",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-095",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12163",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Untrusted search path vulnerability in Microsoft Windows Server 2008 R2 and Windows 7, when BranchCache is supported, allows local users to gain privileges via a Trojan horse DLL in the current working directory, as demonstrated by a directory that contains an EML file, an RSS file, or a WPOST file, aka \"BranchCache Insecure Library Loading Vulnerability.\""
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de ruta de búsqueda en Microsoft Windows Server 2008 R2 y Windows 7, cuando BranchCache es soportado, permite a usuarios locales obtener privilegios a través de un caballo de Troya DLL en el directorio actual de trabajo, como ha sido demostrado por el directorio que contiene un archivo EML, un archivo RSS, o un archivo WPOST, tambíen conocido como \"BranchCache Insecure Library Loading Vulnerability\"."
    }
  ],
  "lastModified": "2026-06-16T23:23:54.607",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:microsoft:windows_7:-:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E33796DB-4523-4F04-B564-ADF030553D51"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2008:r2:*:itanium:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CC916D5A-0644-4423-A52E-D4310906BE78"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2008:r2:*:x64:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "95DC297F-06DB-4FB3-BFB6-7312C059E047"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "evaluatorImpact": "Per: http://www.microsoft.com/technet/security/Bulletin/MS10-095.mspx\r\n\r\n'This is a remote code execution vulnerability.'",
  "evaluatorComment": "Per: http://cwe.mitre.org/data/definitions/426.html\r\n\r\n'CWE-426: Untrusted Search Path'",
  "sourceIdentifier": "secure@microsoft.com"
}