FKIE_CVE-2023-21674
Vulnerability from fkie_nvd - Published: 2023-01-10 22:15 - Updated: 2026-06-17 05:33
Severity
Summary
Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability
References
Impacted products
{
"affected": [
{
"affectedData": [
{
"platforms": [
"32-bit Systems",
"x64-based Systems"
],
"product": "Windows 10 Version 1809",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.17763.3887",
"status": "affected",
"version": "10.0.17763.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"ARM64-based Systems"
],
"product": "Windows 10 Version 1809",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.17763.3887",
"status": "affected",
"version": "10.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server 2019",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.17763.3887",
"status": "affected",
"version": "10.0.17763.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server 2019 (Server Core installation)",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.17763.3887",
"status": "affected",
"version": "10.0.17763.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server 2022",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.20348.1487",
"status": "affected",
"version": "10.0.20348.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"32-bit Systems",
"ARM64-based Systems"
],
"product": "Windows 10 Version 20H2",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.19042.2486",
"status": "affected",
"version": "10.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems",
"ARM64-based Systems"
],
"product": "Windows 11 version 21H2",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.22000.1455",
"status": "affected",
"version": "10.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"32-bit Systems",
"ARM64-based Systems",
"x64-based Systems"
],
"product": "Windows 10 Version 21H2",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.19044.2486",
"status": "affected",
"version": "10.0.19043.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"ARM64-based Systems",
"x64-based Systems"
],
"product": "Windows 11 version 22H2",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.22621.1105",
"status": "affected",
"version": "10.0.22621.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems",
"ARM64-based Systems",
"32-bit Systems"
],
"product": "Windows 10 Version 22H2",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.19045.2486",
"status": "affected",
"version": "10.0.19045.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"32-bit Systems",
"x64-based Systems"
],
"product": "Windows 10 Version 1507",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.10240.19685",
"status": "affected",
"version": "10.0.10240.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"32-bit Systems",
"x64-based Systems"
],
"product": "Windows 10 Version 1607",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.14393.5648",
"status": "affected",
"version": "10.0.14393.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server 2016",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.14393.5648",
"status": "affected",
"version": "10.0.14393.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server 2016 (Server Core installation)",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.14393.5648",
"status": "affected",
"version": "10.0.14393.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"32-bit Systems",
"x64-based Systems",
"ARM64-based Systems"
],
"product": "Windows 8.1",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "6.3.9600.20778",
"status": "affected",
"version": "6.3.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server 2012 R2",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "6.3.9600.20778",
"status": "affected",
"version": "6.3.9600.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server 2012 R2 (Server Core installation)",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "6.3.9600.20778",
"status": "affected",
"version": "6.3.9600.0",
"versionType": "custom"
}
]
}
],
"source": "secure@microsoft.com"
}
],
"cisaActionDue": "2023-01-31",
"cisaExploitAdd": "2023-01-10",
"cisaRequiredAction": "Apply updates per vendor instructions.",
"cisaVulnerabilityName": "Microsoft Windows Advanced Local Procedure Call (ALPC) Privilege Escalation Vulnerability",
"configurations": [
{
"nodes": [
{
"cpeMatch": [
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"criteria": "cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:*:*",
"matchCriteriaId": "2A983693-C39E-424B-8A1E-BD7B3A199632",
"versionEndExcluding": "10.0.10240.19685",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:*:*",
"matchCriteriaId": "960B3437-DF2C-4CF6-AF06-9AF1E6AC9EA5",
"versionEndExcluding": "10.0.14393.5648",
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},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*",
"matchCriteriaId": "A7F8B54C-4564-497A-9786-876A516219C3",
"versionEndExcluding": "10.0.17763.3887",
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{
"criteria": "cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "10.0.19042.2486",
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},
{
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"matchCriteriaId": "05BF289F-51FE-4CE5-8487-D909E4CA3D77",
"versionEndExcluding": "10.0.19044.2486",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:*",
"matchCriteriaId": "127FA76C-101B-4DAB-9034-1B893016D06A",
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},
{
"criteria": "cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:*",
"matchCriteriaId": "84D221BE-D305-4BB8-ADAF-DEDFF7E35C8D",
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"matchCriteriaId": "3E62759B-9029-42E8-8807-1AC4C2D00401",
"versionEndExcluding": "10.0.22621.1105",
"vulnerable": true
},
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"matchCriteriaId": "C6CE5198-C498-4672-AF4C-77AB4BE06C5C",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*",
"matchCriteriaId": "DB18C4CE-5917-401E-ACF7-2747084FD36E",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*",
"matchCriteriaId": "D1FFC699-725E-4F6A-988D-228613256CA3",
"versionEndExcluding": "10.0.14393.5648",
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{
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],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability"
},
{
"lang": "es",
"value": "Vulnerabilidad de elevaci\u00f3n de privilegios de llamada a procedimiento local avanzado (ALPC) de Windows."
}
],
"id": "CVE-2023-21674",
"lastModified": "2026-06-17T05:33:36.547",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.0,
"impactScore": 6.0,
"source": "secure@microsoft.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2023-21674",
"options": [
{
"exploitation": "active"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-07-24T20:55:54.364761Z",
"version": "2.0.3"
}
}
]
},
"published": "2023-01-10T22:15:16.307",
"references": [
{
"source": "secure@microsoft.com",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21674"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21674"
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"tags": [
"US Government Resource"
],
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-21674"
}
],
"sourceIdentifier": "secure@microsoft.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-416"
}
],
"source": "secure@microsoft.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-416"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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