9.3

CVE-2026-40402

Medienbericht

Windows Hyper-V Elevation of Privilege Vulnerability

Use after free in Windows Hyper-V allows an unauthorized attacker to elevate privileges locally.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Microsoft ≫ Windows 11 23h2 HwPlatformarm64 Version < 10.0.22631.7079
Microsoft ≫ Windows 11 23h2 HwPlatformx64 Version < 10.0.22631.7079
Microsoft ≫ Windows Server 2022 Version < 10.0.20348.5074
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% 0.136
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
secure@microsoft.com 9.3 2.5 6
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.