Microsoft Windows 11 version 26H1 vulnerabilities
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Published CVEs affecting Microsoft Windows 11 version 26H1: 2555 record(s), with affected versions and fixes.
CVE-2026-33824
Critical · 9.8
KEV High · 69 Public exploit CWE-415 Apr 14, 2026
Microsoft Internet Key Exchange (IKE) Service Extensions Double Free Vulnerability
Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network.
CVE-2026-33104
High · 7.0
CWE-362 Apr 14, 2026
Win32k Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.
CVE-2026-33101
High · 7.8
CWE-416 Apr 14, 2026
Windows Print Spooler Elevation of Privilege Vulnerability
Use after free in Windows Print Spooler Components allows an authorized attacker to elevate privileges locally.
CVE-2026-33100
High · 7.0
CWE-416 Apr 14, 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-2026-33098
High · 7.8
CWE-416 Apr 14, 2026
Windows Container Isolation FS Filter Driver Elevation of Privilege Vulnerability
Use after free in Windows Container Isolation FS Filter Driver allows an authorized attacker to elevate privileges locally.
CVE-2026-33096
High · 7.5
CWE-125 Apr 14, 2026
HTTP.sys Denial of Service Vulnerability
Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.
CVE-2026-32225
High · 8.8
CWE-693 Apr 14, 2026
Windows Shell Security Feature Bypass Vulnerability
Improper neutralization of special elements used in a command ('command injection') in Windows Shell allows an unauthorized attacker to bypass a security feature over a network.
CVE-2026-32224
High · 7.0
CWE-416 Apr 14, 2026
Windows Server Update Service (WSUS) Elevation of Privilege Vulnerability
Use after free in Windows Server Update Service allows an authorized attacker to elevate privileges locally.
CVE-2026-32223
Medium · 6.8
CWE-122 Apr 14, 2026
Windows USB Printing Stack (usbprint.sys) Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows USB Print Driver allows an unauthorized attacker to elevate privileges with a physical attack.
CVE-2026-32222
High · 7.8
CWE-822 Apr 14, 2026
Windows Win32k Elevation of Privilege Vulnerability
Untrusted pointer dereference in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.
CVE-2026-32221
High · 8.4
CWE-122 Apr 14, 2026
Windows Graphics Component Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code locally.
CVE-2026-32220
Medium · 4.4
CWE-284 Apr 14, 2026
UEFI Secure Boot Security Feature Bypass Vulnerability
Improper access control in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to bypass a security feature locally.
CVE-2026-32219
High · 7.0
CWE-362 Apr 14, 2026
Microsoft Brokering File System Elevation of Privilege Vulnerability
Double free in Microsoft Brokering File System allows an authorized attacker to elevate privileges locally.
CVE-2026-32218
Medium · 5.5
CWE-532 Apr 14, 2026
Windows Kernel Information Disclosure Vulnerability
Insertion of sensitive information into log file in Windows Kernel allows an authorized attacker to disclose information locally.
CVE-2026-32217
Medium · 5.5
CWE-532 Apr 14, 2026
Windows Kernel Information Disclosure Vulnerability
Insertion of sensitive information into log file in Windows Kernel allows an authorized attacker to disclose information locally.
CVE-2026-32216
Medium · 5.5
CWE-476 Apr 14, 2026
Windows Redirected Drive Buffering System Denial of Service Vulnerability
Null pointer dereference in Windows Redirected Drive Buffering allows an authorized attacker to deny service locally.
CVE-2026-32215
Medium · 5.5
CWE-532 Apr 14, 2026
Windows Kernel Information Disclosure Vulnerability
Insertion of sensitive information into log file in Windows Kernel allows an authorized attacker to disclose information locally.
CVE-2026-32214
Medium · 5.5
CWE-284 Apr 14, 2026
Universal Plug and Play (upnp.dll) Information Disclosure Vulnerability
Improper access control in Universal Plug and Play (upnp.dll) allows an authorized attacker to disclose information locally.
CVE-2026-32212
Medium · 5.5
CWE-59 Apr 14, 2026
Universal Plug and Play (upnp.dll) Information Disclosure Vulnerability
Improper link resolution before file access ('link following') in Universal Plug and Play (upnp.dll) allows an authorized attacker to disclose information locally.
CVE-2026-32202
Medium · 4.3
KEV High · 67 Public exploit CWE-693 Apr 14, 2026
Microsoft Windows Protection Mechanism Failure Vulnerability
Protection mechanism failure in Windows Shell allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-32195
High · 7.0
CWE-121 Apr 14, 2026
Windows Kernel Elevation of Privilege Vulnerability
Stack-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
CVE-2026-32183
High · 7.8
CWE-77 Apr 14, 2026
Windows Snipping Tool Remote Code Execution Vulnerability
Improper neutralization of special elements used in a command ('command injection') in Windows Snipping Tool allows an unauthorized attacker to execute code locally.
CVE-2026-32181
Medium · 5.5
CWE-269 Apr 14, 2026
Connected User Experiences and Telemetry Service Denial of Service Vulnerability
Improper privilege management in Microsoft Windows allows an authorized attacker to deny service locally.
CVE-2026-32165
High · 7.8
CWE-362 Apr 14, 2026
Windows User Interface Core Elevation of Privilege Vulnerability
Use after free in Windows User Interface Core allows an authorized attacker to elevate privileges locally.
CVE-2026-32164
High · 7.8
CWE-362 Apr 14, 2026
Windows User Interface Core Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows User Interface Core allows an authorized attacker to elevate privileges locally.