Microsoft Windows 10 21h2 vulnerabilities
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Published CVEs affecting Microsoft Windows 10 21h2: 2551 record(s), with affected versions and fixes.cpe:2.3:o:microsoft:windows_10_21h2
CVE-2026-49174
Medium · 6.1
CWE-306 Jul 14, 2026
DNS Client Tampering Vulnerability
Missing authentication for critical function in Microsoft Windows DNS allows an authorized attacker to perform tampering locally.
CVE-2026-49172
Critical · 9.8
CWE-122 Jul 14, 2026
Windows FTP Service Remote Code Execution Vulnerability
Heap-based buffer overflow in Windows FTP Service allows an unauthorized attacker to execute code over a network.
CVE-2026-49171
High · 7.8
CWE-416 Jul 14, 2026
Windows Speech Runtime Elevation of Privilege Vulnerability
Use after free in Microsoft Windows Speech allows an authorized attacker to elevate privileges locally.
CVE-2026-49170
High · 7.8
CWE-285 Jul 14, 2026
Windows StateRepository API Server file Elevation of Privilege Vulnerability
Insufficient granularity of access control in Windows StateRepository API allows an authorized attacker to elevate privileges locally.
CVE-2026-49168
Medium · 6.8
CWE-190 Jul 14, 2026
Storage Spaces Direct Elevation of Privilege Vulnerability
Integer overflow or wraparound in Windows Storage Spaces Direct allows an unauthorized attacker to elevate privileges with a physical attack.
CVE-2026-49167
High · 7.8
CWE-416 Jul 14, 2026
Windows Kernel Elevation of Privilege Vulnerability
Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
CVE-2026-49165
High · 7.1
CWE-908 Jul 14, 2026
Microsoft Windows App Store Information Disclosure Vulnerability
Use of uninitialized resource in Microsoft Windows App Store allows an authorized attacker to disclose information locally.
CVE-2026-49164
Critical · 9.8
CWE-122 Jul 14, 2026
Windows Active Directory Domain Services Remote Code Execution Vulnerability
Heap-based buffer overflow in Active Directory Domain Services allows an unauthorized attacker to execute code over a network.
CVE-2026-44806
High · 7.5
CWE-401 Jul 14, 2026
Windows Secure Channel Denial of Service Vulnerability
Missing release of memory after effective lifetime in Windows Cryptographic Services allows an unauthorized attacker to deny service over a network.
CVE-2026-42990
Critical · 9.8
CWE-122 Jul 14, 2026
SQL Server ODBC driver Elevation of Privilege Vulnerability
Heap-based buffer overflow in SQL Server ODBC driver allows an unauthorized attacker to execute code over a network.
CVE-2026-42982
High · 7.8
CWE-1288 Jul 14, 2026
Windows Secure Kernel Mode Elevation of Privilege Vulnerability
Improper validation of consistency within input in Windows Secure Kernel Mode allows an authorized attacker to elevate privileges locally.
CVE-2026-42975
High · 8.8
CWE-122 Jul 14, 2026
Windows Bluetooth Port Driver Remote Code Execution
Heap-based buffer overflow in Windows Bluetooth Port Driver allows an unauthorized attacker to execute code over an adjacent network.
CVE-2026-42900
High · 8.1
CWE-362 Jul 14, 2026
Microsoft Windows App Store Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows App Store allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-41087
Medium · 5.5
CWE-200 Jul 14, 2026
Windows File Explorer Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally.
CVE-2026-40422
Medium · 5.5
CWE-908 Jul 14, 2026
Windows File Explorer Information Disclosure Vulnerability
Use of uninitialized resource in Windows File Explorer allows an authorized attacker to disclose information locally.
CVE-2026-40400
High · 8.0
CWE-23 Jul 14, 2026
Windows PowerShell Remote Code Execution Vulnerability
Relative path traversal in Windows PowerShell allows an authorized attacker to execute code over a network.
CVE-2026-40378
High · 7.5
CWE-789 Jul 14, 2026
Windows Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability
Memory allocation with excessive size value in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to deny service over a network.
CVE-2026-34349
Medium · 5.5
CWE-200 Jul 14, 2026
Windows Media Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows Media allows an authorized attacker to disclose information locally.
CVE-2026-34348
Medium · 6.5
CWE-693 Jul 14, 2026
Windows Event Logging Service Information Disclosure Vulnerability
Protection mechanism failure in Windows Event Logging Service allows an authorized attacker to disclose information over a network.
CVE-2026-34346
Medium · 5.5
CWE-319 Jul 14, 2026
Windows Ancillary Function Driver for WinSock Information Disclosure Vulnerability
Cleartext transmission of sensitive information in Windows Ancillary Function Driver for WinSock allows an authorized attacker to disclose information locally.
CVE-2026-34328
Medium · 5.5
CWE-200 Jul 14, 2026
Windows Audio Service Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows Audio Service allows an authorized attacker to disclose information locally.
CVE-2026-33842
Medium · 5.5
CWE-200 Jul 14, 2026
Windows File Explorer Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally.
CVE-2026-50507
Medium · 6.8
CWE-306 Jun 9, 2026
Windows BitLocker Security Feature Bypass Vulnerability
Missing authentication for critical function in Windows BitLocker allows an unauthorized attacker to bypass a security feature with a physical attack.
CVE-2026-49160
High · 7.5
CWE-400 Jun 9, 2026
HTTP.sys Denial of Service Vulnerability
Uncontrolled resource consumption in HTTP/2 allows an unauthorized attacker to deny service over a network.
CVE-2026-48583
High · 7.8
CWE-416 Jun 9, 2026
Windows Kernel Elevation of Privilege Vulnerability
Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.