7

CVE-2026-21242

Windows Subsystem for Linux Elevation of Privilege Vulnerability

Use after free in Windows Subsystem for Linux allows an authorized attacker to elevate privileges locally.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Microsoft ≫ Windows 10 21h2 HwPlatformarm64 Version < 10.0.19044.6937
Microsoft ≫ Windows 10 21h2 HwPlatformx64 Version < 10.0.19044.6937
Microsoft ≫ Windows 10 22h2 HwPlatformarm64 Version < 10.0.19045.6937
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 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% 0.125
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
secure@microsoft.com 7 1 5.9
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.