Microsoft Windows Server 2025 vulnerabilities

CVE-2026-83747 Medium · 5.5 CWE-125 Oct 13, 2026

Windows Error Reporting Information Disclosure Vulnerability

Out-of-bounds read in Windows Error Reporting allows an authorized attacker to disclose information locally.

CVE-2026-83741 High · 7.8 CWE-416 Oct 13, 2026

Internet Explorer Elevation of Privilege Vulnerability

Use after free in Internet Explorer allows an authorized attacker to elevate privileges locally.

CVE-2026-83740 High · 7.0 CWE-416 Oct 13, 2026

Windows Hello Elevation of Privilege Vulnerability

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

CVE-2026-83739 High · 7.5 CWE-416 Oct 13, 2026

Windows Bluetooth Service Remote Code Execution Vulnerability

Use after free in Windows Bluetooth Service allows an unauthorized attacker to execute code over an adjacent network.

CVE-2026-83738 High · 7.0 CWE-362 Oct 13, 2026

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVE-2026-83737 Medium · 5.5 CWE-125 Oct 13, 2026

Windows NTFS Information Disclosure Vulnerability

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

CVE-2026-83736 Medium · 5.5 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-2026-83735 High · 7.8 CWE-763 Oct 13, 2026

Windows Kernel Elevation of Privilege Vulnerability

Release of invalid pointer or reference in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVE-2026-83733 Medium · 5.5 CWE-125 Oct 13, 2026

Windows Print Spooler Components Information Disclosure Vulnerability

Out-of-bounds read in Windows Print Spooler Components allows an authorized attacker to disclose information locally.

CVE-2026-83732 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-2026-83728 High · 8.8 CWE-1286 Oct 13, 2026

Windows Hyper-V Spoofing Vulnerability

Improper validation of syntactic correctness of input in Windows Hyper-V allows an authorized attacker to perform spoofing locally.

CVE-2026-83727 High · 7.8 CWE-126 Oct 13, 2026

Windows Overlay Filter Elevation of Privilege Vulnerability

Buffer over-read in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.

CVE-2026-83726 High · 7.8 CWE-416 Oct 13, 2026

Windows DWM Core Library Elevation of Privilege Vulnerability

Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

CVE-2026-83725 High · 8.8 CWE-122 Oct 13, 2026

Microsoft Windows Search Component Remote Code Execution Vulnerability

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

CVE-2026-83724 High · 7.0 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-2026-83723 Medium · 5.5 CWE-908 Oct 13, 2026

Windows Event Logging Service Information Disclosure Vulnerability

Use of uninitialized resource in Windows Event Logging Service allows an authorized attacker to disclose information locally.

CVE-2026-83722 High · 7.0 CWE-362 Oct 13, 2026

Microsoft Local Security Authority (LSA) Server Elevation of Privilege Vulnerability

Use after free in Microsoft Local Security Authority Server (lsasrv) allows an authorized attacker to elevate privileges locally.

CVE-2026-83721 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-2026-83719 Medium · 5.5 CWE-126 Oct 13, 2026

Servicing Stack Updates Information Disclosure Vulnerability

Buffer over-read in Servicing Stack Updates allows an authorized attacker to disclose information locally.

CVE-2026-83718 High · 7.0 CWE-416 Oct 13, 2026

Windows Installer Elevation of Privilege Vulnerability

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

CVE-2026-83717 High · 7.0 CWE-416 Oct 13, 2026

Windows Installer Elevation of Privilege Vulnerability

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

CVE-2026-83716 High · 8.8 CWE-122 Oct 13, 2026

Windows Hyper-V Remote Code Execution Vulnerability

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

CVE-2026-83715 High · 7.1 CWE-306 Oct 13, 2026

Windows Error Reporting Tampering Vulnerability

Missing authentication for critical function in Windows Error Reporting allows an authorized attacker to perform tampering locally.

CVE-2026-83714 Medium · 5.5 CWE-908 Oct 13, 2026

HTTP.sys Information Disclosure Vulnerability

Use of uninitialized resource in Windows HTTP.sys allows an authorized attacker to disclose information locally.

CVE-2026-83713 Medium · 5.5 CWE-497 Oct 13, 2026

Windows Universal Disk Format File System Driver (UDFS) Information Disclosure Vulnerability

Out-of-bounds read in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to disclose information locally.