Microsoft Windows Server 2019 (Server Core installation) vulnerabilities

CVE-2026-83786 Medium · 4.7 CWE-209 Oct 13, 2026

Windows NTFS Information Disclosure Vulnerability

Generation of error message containing sensitive information in Windows NTFS allows an authorized attacker to disclose information locally.

CVE-2026-83785 High · 7.0 CWE-416 Oct 13, 2026

Windows COM+ Event System Service Elevation of Privilege Vulnerability

Use after free in Windows COM+ Event System Service allows an authorized attacker to elevate privileges locally.

CVE-2026-83784 High · 8.8 CWE-36 Oct 13, 2026

Windows Encrypting File System (EFS) Elevation of Privilege Vulnerability

Absolute path traversal in Windows Encrypting File System (EFS) allows an authorized attacker to elevate privileges over a network.

CVE-2026-83783 High · 7.8 CWE-122 Oct 13, 2026

Windows Management Instrumentation Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Management Instrumentation allows an authorized attacker to elevate privileges locally.

CVE-2026-83782 Critical · 9.8 CWE-122 Oct 13, 2026

Windows Shell Remote Code Execution Vulnerability

Heap-based buffer overflow in Windows Shell allows an unauthorized attacker to execute code over a network.

CVE-2026-83780 Critical · 9.8 CWE-416 Oct 13, 2026

Windows CCFFilter Driver Remote Code Execution Vulnerability

Use after free in Windows CCFFilter Driver allows an unauthorized attacker to execute code over a network.

CVE-2026-83779 High · 7.8 CWE-122 Oct 13, 2026

Windows Installer Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.

CVE-2026-83778 High · 8.8 CWE-122 Oct 13, 2026

Microsoft Internet Messaging API Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Internet Messaging API allows an unauthorized attacker to execute code over a network.

CVE-2026-83777 High · 8.8 CWE-122 Oct 13, 2026

Windows Bluetooth Service Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Bluetooth Service allows an unauthorized attacker to elevate privileges over an adjacent network.

CVE-2026-83776 Medium · 6.8 CWE-125 Oct 13, 2026

Windows Bluetooth Driver Elevation of Privilege Vulnerability

Out-of-bounds read in Microsoft Bluetooth Driver allows an unauthorized attacker to elevate privileges with a physical attack.

CVE-2026-83775 High · 7.0 CWE-122 Oct 13, 2026

Windows Installer Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Installer allows an authorized attacker to elevate privileges locally.

CVE-2026-83774 Medium · 4.7 CWE-497 Oct 13, 2026

Windows Win32 Kernel Subsystem Information Disclosure Vulnerability

Exposure of sensitive system information to an unauthorized control sphere in Windows Win32 Kernel Subsystem allows an authorized attacker to disclose information locally.

CVE-2026-83770 Critical · 9.8 CWE-122 Oct 13, 2026

Windows Text Shaping Remote Code Execution Vulnerability

Heap-based buffer overflow in Windows Text Shaping allows an unauthorized attacker to execute code over a network.

CVE-2026-83769 High · 7.8 CWE-416 Oct 13, 2026

Microsoft OpenSSH for Windows Elevation of Privilege Vulnerability

Use after free in OpenSSH for Windows allows an authorized attacker to elevate privileges locally.

CVE-2026-83768 High · 7.8 CWE-122 Oct 13, 2026

Windows Kernel Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVE-2026-83767 High · 7.8 CWE-121 Oct 13, 2026

Windows Installer Elevation of Privilege Vulnerability

Stack-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.

CVE-2026-83766 Medium · 4.2 CWE-863 Oct 13, 2026

Windows Hyper-V Security Feature Bypass Vulnerability

Incorrect authorization in Windows Hyper-V allows an authorized attacker to bypass a security feature over an adjacent network.

CVE-2026-83765 Medium · 5.5 CWE-125 Oct 13, 2026

Windows DWM Core Library Information Disclosure Vulnerability

Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to disclose information locally.

CVE-2026-83764 Medium · 5.5 CWE-863 Oct 13, 2026

Windows Clipboard User Service Information Disclosure Vulnerability

Incorrect authorization in Windows Clipboard User Service allows an authorized attacker to disclose information locally.

CVE-2026-83763 High · 7.8 CWE-843 Oct 13, 2026

Windows Input System Elevation of Privilege Vulnerability

Access of resource using incompatible type ('type confusion') in Windows Input System allows an authorized attacker to elevate privileges locally.

CVE-2026-83762 High · 7.8 CWE-416 Oct 13, 2026

Win32k Elevation of Privilege Vulnerability

Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.

CVE-2026-83761 High · 7.8 CWE-416 Oct 13, 2026

Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability

Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.

CVE-2026-83760 Medium · 5.5 CWE-125 Oct 13, 2026

Microsoft Bluetooth Driver Information Disclosure Vulnerability

Out-of-bounds read in Microsoft Bluetooth Driver allows an authorized attacker to disclose information locally.

CVE-2026-83759 High · 8.8 CWE-94 Oct 13, 2026

Windows Encrypting File System (EFS) Remote Code Execution Vulnerability

Improper control of generation of code ('code injection') in Windows Encrypting File System (EFS) allows an authorized attacker to execute code over a network.

CVE-2026-83758 High · 7.8 CWE-122 Oct 13, 2026

Windows Error Reporting Remote Code Execution Vulnerability

Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to execute code locally.