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Windows 11 26h1

windows_11_26h1

Vendor: Microsoft • 894 CVEs

CVEs (894)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Microsoft
1Windows 11 26h1
Aug 14, 2026
Aug 11, 2026
N/A· v4
5.5 MEDIUM· v3
N/A· v2
Improper link resolution before file access ('link following') in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to perform tampering locally.
1Microsoft
3Windows 11 24h2
Windows 11 25h2Windows 11 26h1
Aug 14, 2026
Aug 11, 2026
N/A· v4
5.5 MEDIUM· v3
N/A· v2
Improper link resolution before file access ('link following') in Windows Management Services allows an authorized attacker to deny service locally.
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Aug 16, 2026
Aug 11, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Aug 16, 2026
Aug 11, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Stack-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Aug 16, 2026
Aug 11, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Aug 16, 2026
Aug 11, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Stack-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Aug 18, 2026
Aug 11, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Windows DNS allows an authorized attacker to elevate privileges locally.
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Aug 16, 2026
Aug 11, 2026
N/A· v4
7.0 HIGH· v3
N/A· v2
Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Aug 17, 2026
Aug 11, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Windows DNS allows an authorized attacker to elevate privileges locally.
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Aug 16, 2026
Aug 11, 2026
N/A· v4
7.0 HIGH· v3
N/A· v2
Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
1Microsoft
4Windows 10 22h2
Windows 11 24h2Windows 11 25h2+1 more
Aug 14, 2026
Aug 11, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Improper access control in Windows Cross Device Service allows an authorized attacker to elevate privileges locally.
1Microsoft
5Windows 10 1809
Windows 11 26h1Windows Server 2019+2 more
Aug 20, 2026
Aug 11, 2026
N/A· v4
8.1 HIGH· v3
N/A· v2
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Device Health Attestation (DHA) allows an unauthorized attacker to execute code over a network.
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Aug 16, 2026
Aug 11, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Windows Key Guard allows an authorized attacker to elevate privileges locally.
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Aug 16, 2026
Aug 11, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Windows Storage Port Driver allows an authorized attacker to elevate privileges locally.
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Aug 17, 2026
Aug 11, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Integer overflow or wraparound in Windows DNS allows an authorized attacker to elevate privileges locally.
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Aug 17, 2026
Aug 11, 2026
N/A· v4
6.7 MEDIUM· v3
N/A· v2
Numeric truncation error in Windows DNS allows an authorized attacker to elevate privileges locally.
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Aug 17, 2026
Aug 11, 2026
N/A· v4
6.7 MEDIUM· v3
N/A· v2
Numeric truncation error in Windows DNS allows an authorized attacker to elevate privileges locally.
1Microsoft
12Windows 10 1607
Windows 10 1809Windows 10 21h2+9 more
Aug 21, 2026
Aug 11, 2026
N/A· v4
6.7 MEDIUM· v3
N/A· v2
Relative path traversal in Windows DNS allows an authorized attacker to elevate privileges locally.
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Aug 16, 2026
Aug 11, 2026
N/A· v4
6.5 MEDIUM· v3
N/A· v2
Buffer over-read in Windows SMB Client allows an unauthorized attacker to disclose information over a network.
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Aug 16, 2026
Aug 11, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Windows Message Queuing allows an authorized attacker to elevate privileges locally.