CVE-2023-21674 (GCVE-0-2023-21674)

Vulnerability from cvelistv5 – Published: 2023-01-10 00:00 – Updated: 2025-10-21 23:15
VLAI? CISA
Title
Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability
Summary
Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability
CWE
Assigner
References
Impacted products
Vendor Product Version
Microsoft Windows 10 Version 1809 Affected: 10.0.17763.0 , < 10.0.17763.3887 (custom)
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    Microsoft Windows 10 Version 1809 Affected: 10.0.0 , < 10.0.17763.3887 (custom)
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    Microsoft Windows Server 2019 Affected: 10.0.17763.0 , < 10.0.17763.3887 (custom)
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    Microsoft Windows Server 2019 (Server Core installation) Affected: 10.0.17763.0 , < 10.0.17763.3887 (custom)
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    Microsoft Windows Server 2022 Affected: 10.0.20348.0 , < 10.0.20348.1487 (custom)
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    Microsoft Windows 10 Version 20H2 Affected: 10.0.0 , < 10.0.19042.2486 (custom)
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    Microsoft Windows 11 version 21H2 Affected: 10.0.0 , < 10.0.22000.1455 (custom)
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    Microsoft Windows 10 Version 21H2 Affected: 10.0.19043.0 , < 10.0.19044.2486 (custom)
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    Microsoft Windows 11 version 22H2 Affected: 10.0.22621.0 , < 10.0.22621.1105 (custom)
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    Microsoft Windows 10 Version 22H2 Affected: 10.0.19045.0 , < 10.0.19045.2486 (custom)
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    Microsoft Windows 10 Version 1507 Affected: 10.0.10240.0 , < 10.0.10240.19685 (custom)
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    Microsoft Windows 10 Version 1607 Affected: 10.0.14393.0 , < 10.0.14393.5648 (custom)
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    Microsoft Windows Server 2016 Affected: 10.0.14393.0 , < 10.0.14393.5648 (custom)
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    Microsoft Windows Server 2016 (Server Core installation) Affected: 10.0.14393.0 , < 10.0.14393.5648 (custom)
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    Microsoft Windows 8.1 Affected: 6.3.0 , < 6.3.9600.20778 (custom)
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    Microsoft Windows Server 2012 R2 Affected: 6.3.9600.0 , < 6.3.9600.20778 (custom)
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    Microsoft Windows Server 2012 R2 (Server Core installation) Affected: 6.3.9600.0 , < 6.3.9600.20778 (custom)
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CISA Known Exploited Vulnerability
Data from the CISA Known Exploited Vulnerabilities Catalog

Date added: 2023-01-10

Due date: 2023-01-31

Required action: Apply updates per vendor instructions.

Used in ransomware: Unknown

Notes: https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-21674; https://nvd.nist.gov/vuln/detail/CVE-2023-21674

Show details on NVD website

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    "vulnrichment": {
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      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

Author Source Type Date

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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Detection rules are retrieved from Rulezet.

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