Microsoft Windows 11 version 26H1 vulnerabilities
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Published CVEs affecting Microsoft Windows 11 version 26H1: 2565 record(s), with affected versions and fixes.
CVE-2026-70106
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-2026-70104
High · 7.8
CWE-822 Oct 13, 2026
Windows Win32k Elevation of Privilege Vulnerability
Untrusted pointer dereference in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
CVE-2026-70103
High · 7.8
CWE-122 Oct 13, 2026
Windows Error Reporting Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
CVE-2026-70102
High · 7.8
CWE-416 Oct 13, 2026
Windows Spaceport.sys Elevation of Privilege Vulnerability
Use after free in Windows Spaceport.sys allows an authorized attacker to elevate privileges locally.
CVE-2026-70097
Medium · 5.6
CWE-362 Oct 13, 2026
Windows Virtualization-Based Security (VBS) Enclave Spoofing Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to perform spoofing locally.
CVE-2026-70096
Critical · 9.8
CWE-122 Oct 13, 2026
Windows Rich Text Edit Control Remote Code Execution Vulnerability
Heap-based buffer overflow in Windows Rich Text Edit Control allows an unauthorized attacker to execute code over a network.
CVE-2026-70095
High · 7.5
CWE-122 Oct 13, 2026
Windows iSCSI Remote Code Execution Vulnerability
Heap-based buffer overflow in Windows iSCSI allows an unauthorized attacker to execute code over a network.
CVE-2026-70093
High · 7.8
CWE-122 Oct 13, 2026
Windows Rich Text Edit Control Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Rich Text Edit Control allows an authorized attacker to elevate privileges locally.
CVE-2026-70092
High · 7.8
CWE-122 Oct 13, 2026
Microsoft PostScript Printer Driver Elevation of Privilege Vulnerability
Heap-based buffer overflow in Microsoft PostScript Printer Driver allows an unauthorized attacker to elevate privileges locally.
CVE-2026-70090
Medium · 5.5
CWE-908 Oct 13, 2026
Windows Netlogon Information Disclosure Vulnerability
Use of uninitialized resource in Windows Netlogon allows an authorized attacker to disclose information locally.
CVE-2026-70089
High · 8.8
CWE-122 Oct 13, 2026
Windows GDI Remote Code Execution Vulnerability
Heap-based buffer overflow in Windows GDI allows an unauthorized attacker to execute code over a network.
CVE-2026-70086
High · 7.0
CWE-416 Oct 13, 2026
Microsoft Windows Search Component Elevation of Privilege Vulnerability
Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.
CVE-2026-70084
Medium · 5.5
CWE-22 Oct 13, 2026
Windows Projected File System Information Disclosure Vulnerability
Improper access control in Windows Projected File System allows an authorized attacker to disclose information locally.
CVE-2026-70077
Medium · 4.7
CWE-416 Oct 13, 2026
Windows Kernel Information Disclosure Vulnerability
Use after free in Windows Kernel allows an authorized attacker to disclose information locally.
CVE-2026-70076
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-2026-70075
Medium · 4.4
CWE-367 Oct 13, 2026
Windows Virtualization-Based Security (VBS) Enclave Security Feature Bypass Vulnerability
Time-of-check time-of-use (toctou) race condition in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to bypass a security feature locally.
CVE-2026-70072
Medium · 6.5
CWE-770 Oct 13, 2026
Windows Netlogon Denial of Service Vulnerability
Allocation of resources without limits or throttling in Windows Netlogon allows an authorized attacker to deny service over a network.
CVE-2026-70068
High · 8.8
CWE-122 Oct 13, 2026
Windows Client-Side Caching (CSC) Service Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Client-Side Caching (CSC) Service allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-70067
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-2026-70064
High · 7.8
CWE-191 Oct 13, 2026
Windows Kerberos Elevation of Privilege Vulnerability
Integer underflow (wrap or wraparound) in Windows Kerberos allows an authorized attacker to elevate privileges locally.
CVE-2026-70063
Medium · 4.7
CWE-125 Oct 13, 2026
Windows Kernel Information Disclosure Vulnerability
Out-of-bounds read in Windows Kernel allows an authorized attacker to disclose information locally.
CVE-2026-70062
High · 8.1
CWE-415 Oct 13, 2026
Windows libarchive Remote Code Execution Vulnerability
Double free in Windows Libarchive allows an unauthorized attacker to execute code over a network.
CVE-2026-70060
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-2026-70059
High · 7.8
CWE-122 Oct 13, 2026
Windows OLE Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows OLE allows an authorized attacker to elevate privileges locally.
CVE-2026-70057
Medium · 5.5
CWE-863 Oct 13, 2026
Windows Routing and Remote Access Service (RRAS) Security Feature Bypass Vulnerability
Incorrect authorization in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to bypass a security feature locally.