Microsoft Windows Server 2016 vulnerabilities

CVE-2026-83905 Medium · 4.7 CWE-497 Oct 13, 2026

Windows Shell Information Disclosure Vulnerability

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

CVE-2026-83899 High · 7.0 CWE-362 Oct 13, 2026

Windows Installer Elevation of Privilege Vulnerability

Improper privilege management in Windows Installer allows an authorized attacker to elevate privileges locally.

CVE-2026-83897 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-2026-83896 High · 7.8 CWE-122 Oct 13, 2026

Windows Direct Composition Elevation of Privilege Vulnerability

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

CVE-2026-83889 High · 8.8 CWE-763 Oct 13, 2026

Windows DNS Server Remote Code Execution Vulnerability

Release of invalid pointer or reference in DNS Server allows an authorized attacker to execute code over a network.

CVE-2026-83888 Medium · 6.5 CWE-126 Oct 13, 2026

Windows CD-ROM Driver Elevation of Privilege Vulnerability

Buffer over-read in Windows CD-ROM Driver allows an unauthorized attacker to elevate privileges over a network.

CVE-2026-83883 High · 7.8 CWE-416 Oct 13, 2026

Windows Win32k Elevation of Privilege Vulnerability

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

CVE-2026-83881 High · 7.8 CWE-122 Oct 13, 2026

Windows exFAT File System Elevation of Privilege Vulnerability

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

CVE-2026-83879 High · 7.0 CWE-362 Oct 13, 2026

Windows Overlay Filter Elevation of Privilege Vulnerability

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

CVE-2026-83876 High · 7.8 CWE-416 Oct 13, 2026

Windows Shell Elevation of Privilege Vulnerability

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

CVE-2026-83874 High · 8.8 CWE-122 Oct 13, 2026

Windows Event Tracing Remote Code Execution Vulnerability

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

CVE-2026-83873 High · 7.8 CWE-23 Oct 13, 2026

Windows Shell Elevation of Privilege Vulnerability

Relative path traversal in Windows Shell allows an authorized attacker to elevate privileges locally.

CVE-2026-83872 High · 7.8 CWE-681 Oct 13, 2026

Windows TCP/IP Local Elevation of Privilege Vulnerability

Incorrect conversion between numeric types in Windows TCP/IP allows an authorized attacker to elevate privileges locally.

CVE-2026-83869 Critical · 9.8 CWE-191 Oct 13, 2026

Windows Domain Name Service Remote Code Execution Vulnerability

Integer underflow (wrap or wraparound) in DNS Server allows an unauthorized attacker to execute code over a network.

CVE-2026-83867 High · 7.8 CWE-122 Oct 13, 2026

Windows Push Notifications Elevation of Privilege Vulnerability

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

CVE-2026-83866 High · 7.0 CWE-416 Oct 13, 2026

Windows Win32k Elevation of Privilege Vulnerability

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

CVE-2026-83865 Medium · 4.7 CWE-23 Oct 13, 2026

Windows Internet (wininet.dll) Tampering Vulnerability

Relative path traversal in Windows Internet (wininet.dll) allows an authorized attacker to perform tampering locally.

CVE-2026-83864 Medium · 5.5 CWE-290 Oct 13, 2026

Windows NTFS Information Disclosure Vulnerability

Improper access control in Windows NTFS allows an authorized attacker to disclose information locally.

CVE-2026-83863 High · 7.8 CWE-122 Oct 13, 2026

Servicing Stack Updates Elevation of Privilege Vulnerability

Heap-based buffer overflow in Servicing Stack Updates allows an authorized attacker to elevate privileges locally.

CVE-2026-83862 Critical · 9.8 CWE-416 Oct 13, 2026

Windows Network Load Balancing Remote Code Execution Vulnerability

Use after free in Windows Network Load Balancing allows an unauthorized attacker to execute code over a network.

CVE-2026-83861 High · 7.8 CWE-122 Oct 13, 2026

Windows Remote Desktop Protocol Elevation of Privilege Vulnerability

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

CVE-2026-83860 High · 7.5 CWE-121 Oct 13, 2026

Windows GDI Denial of Service Vulnerability

Stack-based buffer overflow in Windows GDI allows an unauthorized attacker to deny service over a network.

CVE-2026-83859 High · 7.8 CWE-416 Oct 13, 2026

Windows NTFS Elevation of Privilege Vulnerability

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

CVE-2026-83857 High · 7.8 CWE-121 Oct 13, 2026

Windows Universal Disk Format File System Driver (UDFS) Elevation of Privilege Vulnerability

Use after free in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to elevate privileges locally.

CVE-2026-83850 High · 7.8 CWE-122 Oct 13, 2026

Microsoft Windows Search Component Elevation of Privilege Vulnerability

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