8.8

CVE-2026-21255

Windows Hyper-V Security Feature Bypass Vulnerability

Improper access control in Windows Hyper-V allows an authorized attacker to bypass a security feature locally.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Microsoft ≫ Windows 10 1607 HwPlatformx64 Version < 10.0.14393.8868
Microsoft ≫ Windows 10 1809 HwPlatformx64 Version < 10.0.17763.8389
Microsoft ≫ Windows 10 21h2 HwPlatformx64 Version < 10.0.19044.6937
Microsoft ≫ Windows 10 22h2 HwPlatformx64 Version < 10.0.19045.6937
Microsoft ≫ Windows 11 23h2 HwPlatformarm64 Version < 10.0.22631.6649
Microsoft ≫ Windows 11 23h2 HwPlatformx64 Version < 10.0.22631.6649
Microsoft ≫ Windows 11 24h2 HwPlatformarm64 Version < 10.0.26100.7781
Microsoft ≫ Windows 11 24h2 HwPlatformx64 Version < 10.0.26100.7781
Microsoft ≫ Windows 11 25h2 HwPlatformarm64 Version < 10.0.26200.7781
Microsoft ≫ Windows 11 25h2 HwPlatformx64 Version < 10.0.26200.7781
Microsoft ≫ Windows Server 2016 Version < 10.0.14393.8868
Microsoft ≫ Windows Server 2019 Version < 10.0.17763.8389
Microsoft ≫ Windows Server 2022 Version < 10.0.20348.4711
Microsoft ≫ Windows Server 2022 23h2 Version < 10.0.25398.2149
Microsoft ≫ Windows Server 2025 Version < 10.0.26100.32313
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.04% 0.105
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
secure@microsoft.com 8.8 2 6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE-284 Improper Access Control

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.