CVE-2014-1767

Status: ModifiedHigh (7.2)—💥 Exploit

Double free vulnerability in the Ancillary Function Driver (AFD) in afd.sys in the kernel-mode drivers in Microsoft Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allows local users to gain privileges via a crafted application, aka "Ancillary Function Driver Elevation of Privilege Vulnerability."

CVSS

Version: 2.0
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C
Base score: 7.2

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 13%
Percentile among all scored CVEs: 96
Score date: 10/7/2026

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).

💥 Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Published on Exploit-DB · Microsoft Windows 7 (x64) - 'afd.sys' Dangling Pointer Privilege Escalation (MS14-040) (3/7/2016)
Published on Exploit-DB · Microsoft Windows 7 (x86) - 'afd.sys' Dangling Pointer Privilege Escalation (MS14-040) (2/15/2016)
Proof of concept on GitHub (unverified) · List of proofs of concept on GitHub

⚠️ GitHub proofs of concept are not verified: some are fake or contain malware. Never run them outside an isolated lab.

Affected technologies (9)

Microsoft — Windows 7 Microsoft — Windows 8 Microsoft — Windows 8.1 Microsoft — Windows RT Microsoft — Windows RT 8.1 Microsoft — Windows Server 2003 Microsoft — Windows Server 2008 Microsoft — Windows Server 2012 Microsoft — Windows Vista

CWEs

CWE-415

References

Raw JSON (NVD)

Show

{
  "id": "CVE-2014-1767",
  "cveTags": [],
  "metrics": {
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        "source": "nvd@nist.gov",
        "cvssData": {
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          "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": true,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
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  },
  "affected": [
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      "source": "secure@microsoft.com",
      "affectedData": [
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          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
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  ],
  "published": "2014-07-08T22:55:06.380",
  "references": [
    {
      "url": "http://secunia.com/advisories/59778",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/68394",
      "tags": [
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      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.zerodayinitiative.com/advisories/ZDI-14-220/",
      "tags": [
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      "source": "secure@microsoft.com"
    },
    {
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      "source": "secure@microsoft.com"
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    {
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      "source": "secure@microsoft.com"
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    {
      "url": "https://www.exploit-db.com/exploits/39525/",
      "source": "secure@microsoft.com"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-415"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Double free vulnerability in the Ancillary Function Driver (AFD) in afd.sys in the kernel-mode drivers in Microsoft Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allows local users to gain privileges via a crafted application, aka \"Ancillary Function Driver Elevation of Privilege Vulnerability.\""
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de doble liberación en Ancillary Function Driver (AFD) en afd.sys en los controladores de modo de kernel en Microsoft Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold y R2 y Windows RT Gold y 8.1 permite a usuarios locales ganar privilegios a través de una aplicación manipulada, también conocido como 'vulnerabilidad de elevación de privilegios de Ancillary Function Driver.'"
    }
  ],
  "lastModified": "2026-06-17T00:05:31.753",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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            },
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            },
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          "operator": "OR"
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  "evaluatorComment": "<a href=\"http://cwe.mitre.org/data/definitions/415.html\" target=\"_blank\">CWE-415: Double Free</a>",
  "sourceIdentifier": "secure@microsoft.com"
}