Microsoft Windows 11 version 23H2 vulnerabilities
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Published CVEs affecting Microsoft Windows 11 version 23H2: 2391 record(s), with affected versions and fixes.
CVE-2026-70293
Medium · 5.5
CWE-908 Oct 13, 2026
Win32k Information Disclosure Vulnerability
Use of uninitialized resource in Windows Win32 Kernel Subsystem allows an authorized attacker to disclose information locally.
CVE-2026-70292
Medium · 5.5
CWE-125 Oct 13, 2026
Win32k Information Disclosure Vulnerability
Out-of-bounds read in Windows Win32 Kernel Subsystem allows an authorized attacker to disclose information locally.
CVE-2026-70288
Medium · 5.5
CWE-367 Oct 13, 2026
Win32k Information Disclosure Vulnerability
Time-of-check time-of-use (toctou) race condition in Windows Win32 Kernel Subsystem allows an authorized attacker to disclose information locally.
CVE-2026-70286
High · 7.8
CWE-122 Oct 13, 2026
Windows Graphics Component Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.
CVE-2026-70285
High · 7.8
CWE-122 Oct 13, 2026
Windows Win32k Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
CVE-2026-70284
Medium · 5.5
CWE-908 Oct 13, 2026
Win32k Information Disclosure Vulnerability
Use of uninitialized resource in Windows Win32 Kernel Subsystem allows an authorized attacker to disclose information locally.
CVE-2026-70280
Medium · 4.4
CWE-863 Oct 13, 2026
Windows Hello Security Feature Bypass Vulnerability
Incorrect authorization in Windows Hello allows an authorized attacker to bypass a security feature locally.
CVE-2026-70278
High · 7.8
CWE-122 Oct 13, 2026
Microsoft Windows Media Foundation Elevation of Privilege Vulnerability
Heap-based buffer overflow in Microsoft Windows Media Foundation allows an authorized attacker to elevate privileges locally.
CVE-2026-70277
Medium · 5.5
CWE-125 Oct 13, 2026
Windows Fast FAT File System Driver Information Disclosure Vulnerability
Out-of-bounds read in Windows Fast FAT Driver allows an unauthorized attacker to disclose information locally.
CVE-2026-70275
High · 8.8
CWE-822 Oct 13, 2026
Windows CD-ROM File System Driver Remote Code Execution Vulnerability
Untrusted pointer dereference in Windows CD-ROM Driver allows an unauthorized attacker to execute code over a network.
CVE-2026-70274
High · 7.8
CWE-416 Oct 13, 2026
Windows Bind Filter Driver Elevation of Privilege Vulnerability
Use after free in Windows Bind Filter Driver allows an authorized attacker to elevate privileges locally.
CVE-2026-70272
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-2026-70271
High · 7.0
CWE-416 Oct 13, 2026
Windows Win32k Elevation of Privilege Vulnerability
Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
CVE-2026-70270
Medium · 5.5
CWE-822 Oct 13, 2026
Windows Container Isolation FS Filter Driver Elevation of Privilege Vulnerability
Untrusted pointer dereference in Windows Container Isolation FS Filter Driver allows an authorized attacker to elevate privileges locally.
CVE-2026-70262
High · 8.8
CWE-122 Oct 13, 2026
WebDAV Elevation of Privilege Vulnerability
Heap-based buffer overflow in WebDAV allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-70261
Medium · 5.5
CWE-497 Oct 13, 2026
Microsoft Trace Data Helper Information Disclosure Vulnerability
Exposure of sensitive system information to an unauthorized control sphere in Microsoft Trace Data Helper allows an authorized attacker to disclose information locally.
CVE-2026-70260
Medium · 5.5
CWE-497 Oct 13, 2026
Microsoft Trace Data Helper Information Disclosure Vulnerability
Exposure of sensitive system information to an unauthorized control sphere in Microsoft Trace Data Helper allows an authorized attacker to disclose information locally.
CVE-2026-70258
High · 8.8
CWE-122 Oct 13, 2026
Microsoft Windows Media Foundation Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code over a network.
CVE-2026-70255
High · 7.8
CWE-122 Oct 13, 2026
Desktop Window Manager Elevation of Privilege Vulnerability
Heap-based buffer overflow in Desktop Window Manager allows an authorized attacker to elevate privileges locally.
CVE-2026-70253
High · 7.0
CWE-416 Oct 13, 2026
Windows Win32k Elevation of Privilege Vulnerability
Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
CVE-2026-70252
High · 7.0
CWE-416 Oct 13, 2026
Virtual Hard Disk (VHD) Miniport Driver Elevation of Privilege Vulernability
Use after free in Virtual Hard Disk (VHD) Miniport Driver allows an authorized attacker to elevate privileges locally.
CVE-2026-70249
High · 7.0
CWE-416 Oct 13, 2026
Windows Win32k Elevation of Privilege Vulnerability
Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
CVE-2026-70248
Medium · 6.5
CWE-476 Oct 13, 2026
Windows Hyper-V Denial of Service Vulnerability
Null pointer dereference in Windows Hyper-V allows an authorized attacker to deny service locally.
CVE-2026-70247
High · 7.8
CWE-125 Oct 13, 2026
HTTP.sys Remote Code Execution Vulnerability
Out-of-bounds read in Windows HTTP.sys allows an authorized attacker to execute code locally.
CVE-2026-70245
High · 7.8
CWE-843 Oct 13, 2026
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.