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CVE-2019-0623

Status: ModifiedHigh (7.8)—💥 PoC

An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege 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).

💥 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.

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

Affected technologies (7)

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2019-0623",
  "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": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
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        "source": "nvd@nist.gov",
        "cvssData": {
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          "version": "3.0",
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          "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": [
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            },
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            },
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            },
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            },
            {
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              "version": "10 Version 1607 for 32-bit Systems"
            },
            {
              "status": "affected",
              "version": "10 Version 1607 for x64-based Systems"
            },
            {
              "status": "affected",
              "version": "10 Version 1703 for 32-bit Systems"
            },
            {
              "status": "affected",
              "version": "10 Version 1703 for x64-based Systems"
            },
            {
              "status": "affected",
              "version": "10 Version 1709 for 32-bit Systems"
            },
            {
              "status": "affected",
              "version": "10 Version 1709 for x64-based Systems"
            },
            {
              "status": "affected",
              "version": "10 Version 1803 for 32-bit Systems"
            },
            {
              "status": "affected",
              "version": "10 Version 1803 for x64-based Systems"
            },
            {
              "status": "affected",
              "version": "10 Version 1803 for ARM64-based Systems"
            },
            {
              "status": "affected",
              "version": "10 Version 1709 for ARM64-based Systems"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Windows Server",
          "versions": [
            {
              "status": "affected",
              "version": "2008 R2 for x64-based Systems Service Pack 1 (Core installation)"
            },
            {
              "status": "affected",
              "version": "2008 R2 for Itanium-Based Systems Service Pack 1"
            },
            {
              "status": "affected",
              "version": "2008 R2 for x64-based Systems Service Pack 1"
            },
            {
              "status": "affected",
              "version": "2008 for 32-bit Systems Service Pack 2 (Core installation)"
            },
            {
              "status": "affected",
              "version": "2012"
            },
            {
              "status": "affected",
              "version": "2012 (Core installation)"
            },
            {
              "status": "affected",
              "version": "2012 R2"
            },
            {
              "status": "affected",
              "version": "2012 R2 (Core installation)"
            },
            {
              "status": "affected",
              "version": "2016"
            },
            {
              "status": "affected",
              "version": "2016  (Core installation)"
            },
            {
              "status": "affected",
              "version": "version 1709  (Core Installation)"
            },
            {
              "status": "affected",
              "version": "version 1803  (Core Installation)"
            },
            {
              "status": "affected",
              "version": "2008 for Itanium-Based Systems Service Pack 2"
            },
            {
              "status": "affected",
              "version": "2008 for 32-bit Systems Service Pack 2"
            },
            {
              "status": "affected",
              "version": "2008 for x64-based Systems Service Pack 2"
            },
            {
              "status": "affected",
              "version": "2008 for x64-based Systems Service Pack 2 (Core installation)"
            }
          ]
        }
      ]
    }
  ],
  "published": "2019-03-05T23:29:01.113",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/106891",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0623",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/106891",
      "tags": [
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        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0623",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'."
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad de elevación de privilegios en Windows cuando el componente Win32k no gestiona adecuadamente los objetos en la memoria. Esto también se conoce como \"Win32k Elevation of Privilege Vulnerability\"."
    }
  ],
  "lastModified": "2026-06-17T02:08:33.953",
  "configurations": [
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}