Vulnerability-Lookup

BDU:2026-01800

Vulnerability from fstec - Published: 10.02.2026

Title

Уязвимость ядра операционных систем Windows, позволяющая нарушителю повысить свои привилегии

Description

Уязвимость ядра операционных систем Windows связана с ошибками синхронизации при использовании общего ресурса. Эксплуатация уязвимости может позволить нарушителю повысить свои привилегии

Severity ?


                    
                      AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Vendor

Microsoft Corp

Software Name

Windows 11 26H1, Windows Server 2012 R2 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 (Server Core installation), Windows Server 2012, Windows Server 2016 (Server Core installation), Windows Server 2016, Windows 10 1607, Windows Server 2025, Windows 11 24H2, Windows Server 2022, 23H2 Edition (Server Core installation), Windows 11 23H2, Windows Server 2025 (Server Core installation), Windows 10 22H2, Windows 10 21H2, Windows Server 2022 (Server Core installation), Windows Server 2022, Windows Server 2019 (Server Core installation), Windows Server 2019, Windows 10 1809, Windows 11 25H2

Software Version

до 10.0.28000.1575 (Windows 11 26H1), до 6.3.9600.23022 (Windows Server 2012 R2 (Server Core installation)), до 6.3.9600.23022 (Windows Server 2012 R2), до 6.2.9200.25923 (Windows Server 2012 (Server Core installation)), до 6.2.9200.25923 (Windows Server 2012), до 10.0.14393.8868 (Windows Server 2016 (Server Core installation)), до 10.0.14393.8868 (Windows Server 2016), до 10.0.14393.8868 (Windows 10 1607), до 10.0.26100.32370 (Windows Server 2025), до 10.0.26100.32313 (Windows Server 2025), до 10.0.26100.7840 (Windows 11 24H2), до 10.0.26100.7781 (Windows 11 24H2), до 10.0.25398.2149 (Windows Server 2022, 23H2 Edition (Server Core installation)), до 10.0.22631.6649 (Windows 11 23H2), до 10.0.26100.32370 (Windows Server 2025 (Server Core installation)), до 10.0.26100.32313 (Windows Server 2025 (Server Core installation)), до 10.0.19045.6937 (Windows 10 22H2), до 10.0.19044.6937 (Windows 10 21H2), до 10.0.20348.4773 (Windows Server 2022 (Server Core installation)), до 10.0.20348.4711 (Windows Server 2022 (Server Core installation)), до 10.0.20348.4773 (Windows Server 2022), до 10.0.20348.4711 (Windows Server 2022), до 10.0.17763.8389 (Windows Server 2019 (Server Core installation)), до 10.0.17763.8389 (Windows Server 2019), до 10.0.17763.8389 (Windows 10 1809), до 10.0.26100.7840 (Windows 11 25H2), до 10.0.26100.7781 (Windows 11 25H2)

Possible Mitigations

Использование рекомендаций производителя: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21231

Reference

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21231

CWE

CWE-362

JSON

To clipboard

{
  "CVSS 2.0": "AV:L/AC:H/Au:S/C:C/I:C/A:C",
  "CVSS 3.0": "AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
  "CVSS 4.0": null,
  "remediation_\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": null,
  "remediation_\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435": null,
  "\u0412\u0435\u043d\u0434\u043e\u0440 \u041f\u041e": "Microsoft Corp",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "\u0434\u043e 10.0.28000.1575 (Windows 11 26H1), \u0434\u043e 6.3.9600.23022 (Windows Server 2012 R2 (Server Core installation)), \u0434\u043e 6.3.9600.23022 (Windows Server 2012 R2), \u0434\u043e 6.2.9200.25923 (Windows Server 2012 (Server Core installation)), \u0434\u043e 6.2.9200.25923 (Windows Server 2012), \u0434\u043e 10.0.14393.8868 (Windows Server 2016 (Server Core installation)), \u0434\u043e 10.0.14393.8868 (Windows Server 2016), \u0434\u043e 10.0.14393.8868 (Windows 10 1607), \u0434\u043e 10.0.26100.32370 (Windows Server 2025), \u0434\u043e 10.0.26100.32313 (Windows Server 2025), \u0434\u043e 10.0.26100.7840 (Windows 11 24H2), \u0434\u043e 10.0.26100.7781 (Windows 11 24H2), \u0434\u043e 10.0.25398.2149 (Windows Server 2022, 23H2 Edition (Server Core installation)), \u0434\u043e 10.0.22631.6649 (Windows 11 23H2), \u0434\u043e 10.0.26100.32370 (Windows Server 2025 (Server Core installation)), \u0434\u043e 10.0.26100.32313 (Windows Server 2025 (Server Core installation)), \u0434\u043e 10.0.19045.6937 (Windows 10 22H2), \u0434\u043e 10.0.19044.6937 (Windows 10 21H2), \u0434\u043e 10.0.20348.4773 (Windows Server 2022 (Server Core installation)), \u0434\u043e 10.0.20348.4711 (Windows Server 2022 (Server Core installation)), \u0434\u043e 10.0.20348.4773 (Windows Server 2022), \u0434\u043e 10.0.20348.4711 (Windows Server 2022), \u0434\u043e 10.0.17763.8389 (Windows Server 2019 (Server Core installation)), \u0434\u043e 10.0.17763.8389 (Windows Server 2019), \u0434\u043e 10.0.17763.8389 (Windows 10 1809), \u0434\u043e 10.0.26100.7840 (Windows 11 25H2), \u0434\u043e 10.0.26100.7781 (Windows 11 25H2)",
  "\u0412\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0435 \u043c\u0435\u0440\u044b \u043f\u043e \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044e": "\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f:\nhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21231",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "10.02.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "16.02.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "16.02.2026",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2026-01800",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u044b \u0434\u0440\u0443\u0433\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "CVE-2026-21231",
  "\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430",
  "\u041a\u043b\u0430\u0441\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043e\u0434\u0430",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "Windows 11 26H1, Windows Server 2012 R2 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 (Server Core installation), Windows Server 2012, Windows Server 2016 (Server Core installation), Windows Server 2016, Windows 10 1607, Windows Server 2025, Windows 11 24H2, Windows Server 2022, 23H2 Edition (Server Core installation), Windows 11 23H2, Windows Server 2025 (Server Core installation), Windows 10 22H2, Windows 10 21H2, Windows Server 2022 (Server Core installation), Windows Server 2022, Windows Server 2019 (Server Core installation), Windows Server 2019, Windows 10 1809, Windows 11 25H2",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u041e\u0421 \u0438 \u0442\u0438\u043f \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b": "Microsoft Corp Windows 11 26H1 \u0434\u043e 10.0.28000.1575 64-bit, Microsoft Corp Windows 11 26H1 \u0434\u043e 10.0.28000.1575 ARM64, Microsoft Corp Windows Server 2012 R2 (Server Core installation) \u0434\u043e 6.3.9600.23022 , Microsoft Corp Windows Server 2012 R2 \u0434\u043e 6.3.9600.23022 , Microsoft Corp Windows Server 2012 (Server Core installation) \u0434\u043e 6.2.9200.25923 , Microsoft Corp Windows Server 2012 \u0434\u043e 6.2.9200.25923 , Microsoft Corp Windows Server 2016 (Server Core installation) \u0434\u043e 10.0.14393.8868 , Microsoft Corp Windows Server 2016 \u0434\u043e 10.0.14393.8868 , Microsoft Corp Windows 10 1607 \u0434\u043e 10.0.14393.8868 64-bit, Microsoft Corp Windows 10 1607 \u0434\u043e 10.0.14393.8868 32-bit, Microsoft Corp Windows Server 2025 \u0434\u043e 10.0.26100.32370 , Microsoft Corp Windows Server 2025 \u0434\u043e 10.0.26100.32313 , Microsoft Corp Windows 11 24H2 \u0434\u043e 10.0.26100.7840 64-bit, Microsoft Corp Windows 11 24H2 \u0434\u043e 10.0.26100.7781 64-bit, Microsoft Corp Windows 11 24H2 \u0434\u043e 10.0.26100.7840 ARM64, Microsoft Corp Windows 11 24H2 \u0434\u043e 10.0.26100.7781 ARM64, Microsoft Corp Windows Server 2022, 23H2 Edition (Server Core installation) \u0434\u043e 10.0.25398.2149 , Microsoft Corp Windows 11 23H2 \u0434\u043e 10.0.22631.6649 64-bit, Microsoft Corp Windows 11 23H2 \u0434\u043e 10.0.22631.6649 ARM64, Microsoft Corp Windows Server 2025 (Server Core installation) \u0434\u043e 10.0.26100.32370 , Microsoft Corp Windows Server 2025 (Server Core installation) \u0434\u043e 10.0.26100.32313 , Microsoft Corp Windows 10 22H2 \u0434\u043e 10.0.19045.6937 32-bit, Microsoft Corp Windows 10 22H2 \u0434\u043e 10.0.19045.6937 ARM64, Microsoft Corp Windows 10 22H2 \u0434\u043e 10.0.19045.6937 64-bit, Microsoft Corp Windows 10 21H2 \u0434\u043e 10.0.19044.6937 64-bit, Microsoft Corp Windows 10 21H2 \u0434\u043e 10.0.19044.6937 ARM64, Microsoft Corp Windows 10 21H2 \u0434\u043e 10.0.19044.6937 32-bit, Microsoft Corp Windows Server 2022 (Server Core installation) \u0434\u043e 10.0.20348.4773 , Microsoft Corp Windows Server 2022 (Server Core installation) \u0434\u043e 10.0.20348.4711 , Microsoft Corp Windows Server 2022 \u0434\u043e 10.0.20348.4773 , Microsoft Corp Windows Server 2022 \u0434\u043e 10.0.20348.4711 , Microsoft Corp Windows Server 2019 (Server Core installation) \u0434\u043e 10.0.17763.8389 , Microsoft Corp Windows Server 2019 \u0434\u043e 10.0.17763.8389 , Microsoft Corp Windows 10 1809 \u0434\u043e 10.0.17763.8389 64-bit, Microsoft Corp Windows 10 1809 \u0434\u043e 10.0.17763.8389 32-bit, Microsoft Corp Windows 11 25H2 \u0434\u043e 10.0.26100.7840 64-bit, Microsoft Corp Windows 11 25H2 \u0434\u043e 10.0.26100.7781 64-bit, Microsoft Corp Windows 11 25H2 \u0434\u043e 10.0.26100.7840 ARM64, Microsoft Corp Windows 11 25H2 \u0434\u043e 10.0.26100.7781 ARM64",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u044f\u0434\u0440\u0430 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c Windows, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u043f\u043e\u0432\u044b\u0441\u0438\u0442\u044c \u0441\u0432\u043e\u0438 \u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0438",
  "\u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u041e\u0434\u043d\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u043e\u0431\u0449\u0435\u0433\u043e \u0440\u0435\u0441\u0443\u0440\u0441\u0430 \u0441 \u043d\u0435\u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u043e\u0439 \u0441\u0438\u043d\u0445\u0440\u043e\u043d\u0438\u0437\u0430\u0446\u0438\u0435\u0439 (\u00ab\u0421\u0438\u0442\u0443\u0430\u0446\u0438\u044f \u0433\u043e\u043d\u043a\u0438\u00bb) (CWE-362)",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u044f\u0434\u0440\u0430 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c Windows \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u043e\u0448\u0438\u0431\u043a\u0430\u043c\u0438 \u0441\u0438\u043d\u0445\u0440\u043e\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u043f\u0440\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0438 \u043e\u0431\u0449\u0435\u0433\u043e \u0440\u0435\u0441\u0443\u0440\u0441\u0430. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u043f\u043e\u0432\u044b\u0441\u0438\u0442\u044c \u0441\u0432\u043e\u0438 \u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0438",
  "\u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": null,
  "\u041f\u0440\u043e\u0447\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f": null,
  "\u0421\u0432\u044f\u0437\u044c \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430\u043c\u0438 \u0418\u0411": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f": "\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438": "\u041c\u0430\u043d\u0438\u043f\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0441\u0440\u043e\u043a\u0430\u043c\u0438 \u0438 \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435\u043c",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21231",
  "\u0421\u0442\u0430\u0442\u0443\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u043c",
  "\u0422\u0438\u043f \u041f\u041e": "\u041e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u0430\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u0430",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-362",
  "\u0423\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0421\u0440\u0435\u0434\u043d\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 2.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 6)\n\u0412\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 3.1 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 7,8)"
}

CVE-2026-21231 (GCVE-0-2026-21231)

Vulnerability from cvelistv5 – Published: 2026-02-10 17:51 – Updated: 2026-02-23 16:23

Title

Windows Kernel Elevation of Privilege Vulnerability

Summary

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Kernel allows an authorized attacker to elevate privileges locally.

Severity ?

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C

CWE

CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Assigner

microsoft

References

URL

Tags

https://msrc.microsoft.com/update-guide/vulnerabi…

vendor-advisorypatch

Impacted products

Vendor

Product

Version

Microsoft

Windows 10 Version 1607

Affected: 10.0.14393.0 , < 10.0.14393.8868 (custom)

Microsoft	Windows 10 Version 1809	Affected: 10.0.17763.0 , < 10.0.17763.8389 (custom)
Microsoft	Windows 10 Version 21H2	Affected: 10.0.19044.0 , < 10.0.19044.6937 (custom)
Microsoft	Windows 10 Version 22H2	Affected: 10.0.19045.0 , < 10.0.19045.6937 (custom)
Microsoft	Windows 11 version 22H3	Affected: 10.0.22631.0 , < 10.0.22631.6649 (custom)
Microsoft	Windows 11 Version 23H2	Affected: 10.0.22631.0 , < 10.0.22631.6649 (custom)
Microsoft	Windows 11 Version 24H2	Affected: 10.0.26100.0 , < 10.0.26100.7840 (custom)
Microsoft	Windows 11 Version 25H2	Affected: 10.0.26200.0 , < 10.0.26200.7840 (custom)
Microsoft	Windows 11 version 26H1	Affected: 10.0.28000.0 , < 10.0.28000.1575 (custom)
Microsoft	Windows 11 Version 26H1	Affected: 10.0.28000.0 , < 10.0.28000.1575 (custom)
Microsoft	Windows Server 2012	Affected: 6.2.9200.0 , < 6.2.9200.25923 (custom)
Microsoft	Windows Server 2012 (Server Core installation)	Affected: 6.2.9200.0 , < 6.2.9200.25923 (custom)
Microsoft	Windows Server 2012 R2	Affected: 6.3.9600.0 , < 6.3.9600.23022 (custom)
Microsoft	Windows Server 2012 R2 (Server Core installation)	Affected: 6.3.9600.0 , < 6.3.9600.23022 (custom)
Microsoft	Windows Server 2016	Affected: 10.0.14393.0 , < 10.0.14393.8868 (custom)
Microsoft	Windows Server 2016 (Server Core installation)	Affected: 10.0.14393.0 , < 10.0.14393.8868 (custom)
Microsoft	Windows Server 2019	Affected: 10.0.17763.0 , < 10.0.17763.8389 (custom)
Microsoft	Windows Server 2019 (Server Core installation)	Affected: 10.0.17763.0 , < 10.0.17763.8389 (custom)
Microsoft	Windows Server 2022	Affected: 10.0.20348.0 , < 10.0.20348.4773 (custom)
Microsoft	Windows Server 2022, 23H2 Edition (Server Core installation)	Affected: 10.0.25398.0 , < 10.0.25398.2149 (custom)
Microsoft	Windows Server 2025	Affected: 10.0.26100.0 , < 10.0.26100.32370 (custom)
Microsoft	Windows Server 2025 (Server Core installation)	Affected: 10.0.26100.0 , < 10.0.26100.32370 (custom)

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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.

Detection rules are retrieved from Rulezet.

Action not permitted

BDU:2026-01800

CVE-2026-21231 (GCVE-0-2026-21231)

Tags

Sightings

Nomenclature