BDU:2026-05682 (CVE-2026-26172)
Vulnerability from fstec – Published: 2026-04-22 – Updated: 2026-04-22 – View on bdu.fstec.ru Fixed
VLAI
Title
Уязвимость службы push-уведомлений Windows Push Notifications операционных систем Windows, позволяющая нарушителю повысить свои привилегии
Summary
Уязвимость службы push-уведомлений Windows Push Notifications операционных систем Windows связана c ошибками синхронизации при использовании общего ресурса («Ситуация гонки»). Эксплуатация уязвимости может позволить нарушителю повысить свои привилегии
Severity
Class
Code vulnerability
Status
Confirmed by the vendor
Exploitation
Timing and state manipulation, Data structure manipulation
Incidents
Being clarified
Remediation
Software update
CWE
Aliases
References
Impacted products
11 products
from 1 vendor
Vendors
Microsoft Corp
Products
Windows 11 23H2, Windows 11 25H2, Windows Server 2025 (Server Core installation), Windows 10 22H2, Windows 10 21H2, Windows Server 2022 (Server Core installation), Windows Server 2022, Windows 11 26H1, Windows Server 2025, 23H2 Edition (Server Core installation), Windows 11 24H2
Versions
до 10.0.22631.6936 (Windows 11 23H2), до 10.0.26200.8246 (Windows 11 25H2), до 10.0.26100.32690 (Windows Server 2025 (Server Core installation)), до 10.0.19045.7184 (Windows 10 22H2), до 10.0.19044.7184 (Windows 10 21H2), до 10.0.20348.5020 (Windows Server 2022 (Server Core installation)), до 10.0.20348.5020 (Windows Server 2022), до 10.0.28000.1836 (Windows 11 26H1), до 10.0.26100.32690 (Windows Server 2025), до 10.0.25398.2274 (Windows Server 2022, 23H2 Edition (Server Core installation)), до 10.0.26100.8246 (Windows 11 24H2)
Product types
Operating system
Platforms
Microsoft Corp Windows 11 23H2 до 10.0.22631.6936 64-bit, Microsoft Corp Windows 11 23H2 до 10.0.22631.6936 ARM64, Microsoft Corp Windows 11 25H2 до 10.0.26200.8246 64-bit, Microsoft Corp Windows 11 25H2 до 10.0.26200.8246 ARM64, Microsoft Corp Windows Server 2025 (Server Core installation) до 10.0.26100.32690, Microsoft Corp Windows 10 22H2 до 10.0.19045.7184 32-bit, Microsoft Corp Windows 10 22H2 до 10.0.19045.7184 ARM64, Microsoft Corp Windows 10 22H2 до 10.0.19045.7184 64-bit, Microsoft Corp Windows 10 21H2 до 10.0.19044.7184 64-bit, Microsoft Corp Windows 10 21H2 до 10.0.19044.7184 ARM64, Microsoft Corp Windows 10 21H2 до 10.0.19044.7184 32-bit, Microsoft Corp Windows Server 2022 (Server Core installation) до 10.0.20348.5020, Microsoft Corp Windows Server 2022 до 10.0.20348.5020, Microsoft Corp Windows 11 26H1 до 10.0.28000.1836 64-bit, Microsoft Corp Windows 11 26H1 до 10.0.28000.1836 ARM64, Microsoft Corp Windows Server 2025 до 10.0.26100.32690, Microsoft Corp Windows Server 2022, 23H2 Edition (Server Core installation) до 10.0.25398.2274, Microsoft Corp Windows 11 24H2 до 10.0.26100.8246 64-bit, Microsoft Corp Windows 11 24H2 до 10.0.26100.8246 ARM64
Mitigations
Использование рекомендаций производителя:
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26172
Remediation
TO2660 Накопительное обновление для Windows 10 21H2 для x64 систем (KB5082200), TO2661 Накопительное обновление для Windows 11 24H2 для x64 систем (KB5083769)
{
"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": "TO2660, TO2661",
"remediation_\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435": "TO2660 \u041d\u0430\u043a\u043e\u043f\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0435 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u0434\u043b\u044f Windows 10 21H2 \u0434\u043b\u044f x64 \u0441\u0438\u0441\u0442\u0435\u043c (KB5082200), TO2661 \u041d\u0430\u043a\u043e\u043f\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0435 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u0434\u043b\u044f Windows 11 24H2 \u0434\u043b\u044f x64 \u0441\u0438\u0441\u0442\u0435\u043c (KB5083769)",
"\u0412\u0435\u043d\u0434\u043e\u0440 \u041f\u041e": "Microsoft Corp",
"\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "\u0434\u043e 10.0.22631.6936 (Windows 11 23H2), \u0434\u043e 10.0.26200.8246 (Windows 11 25H2), \u0434\u043e 10.0.26100.32690 (Windows Server 2025 (Server Core installation)), \u0434\u043e 10.0.19045.7184 (Windows 10 22H2), \u0434\u043e 10.0.19044.7184 (Windows 10 21H2), \u0434\u043e 10.0.20348.5020 (Windows Server 2022 (Server Core installation)), \u0434\u043e 10.0.20348.5020 (Windows Server 2022), \u0434\u043e 10.0.28000.1836 (Windows 11 26H1), \u0434\u043e 10.0.26100.32690 (Windows Server 2025), \u0434\u043e 10.0.25398.2274 (Windows Server 2022, 23H2 Edition (Server Core installation)), \u0434\u043e 10.0.26100.8246 (Windows 11 24H2)",
"\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-2026-26172",
"\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "14.04.2026",
"\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "22.04.2026",
"\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "22.04.2026",
"\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2026-05682",
"\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-2026-26172",
"\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 23H2, Windows 11 25H2, Windows Server 2025 (Server Core installation), Windows 10 22H2, Windows 10 21H2, Windows Server 2022 (Server Core installation), Windows Server 2022, Windows 11 26H1, Windows Server 2025, Windows Server 2022, 23H2 Edition (Server Core installation), Windows 11 24H2",
"\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 23H2 \u0434\u043e 10.0.22631.6936 64-bit, Microsoft Corp Windows 11 23H2 \u0434\u043e 10.0.22631.6936 ARM64, Microsoft Corp Windows 11 25H2 \u0434\u043e 10.0.26200.8246 64-bit, Microsoft Corp Windows 11 25H2 \u0434\u043e 10.0.26200.8246 ARM64, Microsoft Corp Windows Server 2025 (Server Core installation) \u0434\u043e 10.0.26100.32690 , Microsoft Corp Windows 10 22H2 \u0434\u043e 10.0.19045.7184 32-bit, Microsoft Corp Windows 10 22H2 \u0434\u043e 10.0.19045.7184 ARM64, Microsoft Corp Windows 10 22H2 \u0434\u043e 10.0.19045.7184 64-bit, Microsoft Corp Windows 10 21H2 \u0434\u043e 10.0.19044.7184 64-bit, Microsoft Corp Windows 10 21H2 \u0434\u043e 10.0.19044.7184 ARM64, Microsoft Corp Windows 10 21H2 \u0434\u043e 10.0.19044.7184 32-bit, Microsoft Corp Windows Server 2022 (Server Core installation) \u0434\u043e 10.0.20348.5020 , Microsoft Corp Windows Server 2022 \u0434\u043e 10.0.20348.5020 , Microsoft Corp Windows 11 26H1 \u0434\u043e 10.0.28000.1836 64-bit, Microsoft Corp Windows 11 26H1 \u0434\u043e 10.0.28000.1836 ARM64, Microsoft Corp Windows Server 2025 \u0434\u043e 10.0.26100.32690 , Microsoft Corp Windows Server 2022, 23H2 Edition (Server Core installation) \u0434\u043e 10.0.25398.2274 , Microsoft Corp Windows 11 24H2 \u0434\u043e 10.0.26100.8246 64-bit, Microsoft Corp Windows 11 24H2 \u0434\u043e 10.0.26100.8246 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 \u0441\u043b\u0443\u0436\u0431\u044b push-\u0443\u0432\u0435\u0434\u043e\u043c\u043b\u0435\u043d\u0438\u0439 Windows Push Notifications \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), \u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u043e\u0441\u043b\u0435 \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0435\u043d\u0438\u044f (CWE-416)",
"\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 \u0441\u043b\u0443\u0436\u0431\u044b push-\u0443\u0432\u0435\u0434\u043e\u043c\u043b\u0435\u043d\u0438\u0439 Windows Push Notifications \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 c \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 (\u00ab\u0421\u0438\u0442\u0443\u0430\u0446\u0438\u044f \u0433\u043e\u043d\u043a\u0438\u00bb). \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, \u041c\u0430\u043d\u0438\u043f\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0430\u043c\u0438 \u0434\u0430\u043d\u043d\u044b\u0445",
"\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-2026-26172",
"\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, CWE-416",
"\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)"
}
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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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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