Microsoft Windows 10 21H2 vulnerabilities

CVE-2025-59517 [HIGH] CWE-284 CVE-2025-59517: Improper access control in Windows Storage VSP Driver allows an authorized attacker to elevate privi Improper access control in Windows Storage VSP Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-96186 [HIGH] CWE-502 CVE-2026-96186: Deserialization of untrusted data in Microsoft Windows Media Foundation allows an authorized attacke Deserialization of untrusted data in Microsoft Windows Media Foundation allows an authorized attacker to elevate privileges locally.

CVE-2025-54100 [HIGH] CWE-77 CVE-2025-54100: Improper neutralization of special elements used in a command ('command injection') in Windows Power Improper neutralization of special elements used in a command ('command injection') in Windows PowerShell allows an unauthorized attacker to execute code locally.

CVE-2023-35297 [HIGH] CWE-843 CVE-2023-35297: Windows Pragmatic General Multicast (PGM) Remote Code Execution Vulnerability Windows Pragmatic General Multicast (PGM) Remote Code Execution Vulnerability

CVE-2026-54128 [HIGH] CWE-416 CVE-2026-54128: Use after free in Windows DHCP Client allows an unauthorized attacker to execute code locally. Use after free in Windows DHCP Client allows an unauthorized attacker to execute code locally.

CVE-2026-27909 [HIGH] CWE-416 CVE-2026-27909: Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privil Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.

CVE-2023-28283 [HIGH] CWE-591 CVE-2023-28283: Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability

CVE-2026-81354 [HIGH] CWE-122 CVE-2026-81354: Heap-based buffer overflow in Windows Hello allows an authorized attacker to elevate privileges loca Heap-based buffer overflow in Windows Hello allows an authorized attacker to elevate privileges locally.

CVE-2026-69332 [HIGH] CWE-125 CVE-2026-69332: Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges over a networ Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges over a network.

CVE-2026-69505 [HIGH] CWE-125 CVE-2026-69505: Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges over a networ Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges over a network.

CVE-2026-69458 [HIGH] CWE-125 CVE-2026-69458: Out-of-bounds read in Windows BitLocker allows an authorized attacker to elevate privileges over a n Out-of-bounds read in Windows BitLocker allows an authorized attacker to elevate privileges over a network.

CVE-2026-50365 [HIGH] CWE-287 CVE-2026-50365: Improper authentication in Windows RPC API allows an unauthorized attacker to elevate privileges ove Improper authentication in Windows RPC API allows an unauthorized attacker to elevate privileges over an adjacent network.

CVE-2026-57087 [HIGH] CWE-122 CVE-2026-57087: Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code over a network.

CVE-2026-20837 [HIGH] CWE-122 CVE-2026-20837: Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code locally. Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code locally.

CVE-2024-49089 [HIGH] CWE-122 CVE-2024-49089: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability

CVE-2026-83795 [HIGH] CWE-122 CVE-2026-83795: Heap-based buffer overflow in Windows IKE Extension allows an unauthorized attacker to deny service Heap-based buffer overflow in Windows IKE Extension allows an unauthorized attacker to deny service over a network.

CVE-2026-20940 [HIGH] CWE-822 CVE-2026-20940: Heap-based buffer overflow in Windows Cloud Files Mini Filter Driver allows an authorized attacker t Heap-based buffer overflow in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-21246 [HIGH] CWE-122 CVE-2026-21246: Heap-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to elevate Heap-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally.

CVE-2026-50695 [HIGH] CWE-121 CVE-2026-50695: Stack-based buffer overflow in Active Directory Federation Services allows an unauthorized attacker Stack-based buffer overflow in Active Directory Federation Services allows an unauthorized attacker to deny service over a network.

CVE-2026-50411 [HIGH] CWE-121 CVE-2026-50411: Stack-based buffer overflow in Active Directory Federation Services (AD FS) allows an unauthorized a Stack-based buffer overflow in Active Directory Federation Services (AD FS) allows an unauthorized attacker to deny service over a network.