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Windows 11 26h1

windows_11_26h1

Vendor: Microsoft • 894 CVEs

CVEs (894)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Aug 19, 2026
Apr 14, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Jul 24, 2026
Apr 14, 2026
N/A· v4
7.0 HIGH· v3
N/A· v2
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.
1Microsoft
5Windows 11 24h2
Windows 11 25h2Windows 11 26h1+2 more
Jul 24, 2026
Apr 14, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Use after free in Windows Print Spooler Components allows an authorized attacker to elevate privileges locally.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Jul 24, 2026
Apr 14, 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
Jul 24, 2026
Apr 14, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Use after free in Windows Container Isolation FS Filter Driver allows an authorized attacker to elevate privileges locally.
1Microsoft
7Windows 11 23h2
Windows 11 24h2Windows 11 25h2+4 more
Jul 24, 2026
Apr 14, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Jul 25, 2026
Apr 14, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Protection mechanism failure in Windows Shell allows an unauthorized attacker to bypass a security feature over a network.
1Microsoft
1Windows 11 26h1
Jul 25, 2026
Apr 14, 2026
N/A· v4
7.0 HIGH· v3
N/A· v2
Use after free in Windows Server Update Service allows an authorized attacker to elevate privileges locally.
1Microsoft
4Windows 11 24h2
Windows 11 25h2Windows 11 26h1+1 more
Jul 25, 2026
Apr 14, 2026
N/A· v4
6.8 MEDIUM· v3
N/A· v2
Heap-based buffer overflow in Windows USB Print Driver allows an unauthorized attacker to elevate privileges with a physical attack.
1Microsoft
4Windows 11 24h2
Windows 11 25h2Windows 11 26h1+1 more
Jul 25, 2026
Apr 14, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Untrusted pointer dereference in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.
1Microsoft
4Windows 11 24h2
Windows 11 25h2Windows 11 26h1+1 more
Jul 25, 2026
Apr 14, 2026
N/A· v4
8.4 HIGH· v3
N/A· v2
Heap-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code locally.
1Microsoft
4Windows 11 24h2
Windows 11 25h2Windows 11 26h1+1 more
Jul 25, 2026
Apr 14, 2026
N/A· v4
4.4 MEDIUM· v3
N/A· v2
Improper access control in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to bypass a security feature locally.
1Microsoft
4Windows 11 24h2
Windows 11 25h2Windows 11 26h1+1 more
Jun 17, 2026
Apr 14, 2026
N/A· v4
7.0 HIGH· v3
N/A· v2
Double free in Microsoft Brokering File System allows an authorized attacker to elevate privileges locally.
1Microsoft
9Windows 10 21h2
Windows 10 22h2Windows 11 23h2+6 more
Jun 17, 2026
Apr 14, 2026
N/A· v4
5.5 MEDIUM· v3
N/A· v2
Insertion of sensitive information into log file in Windows Kernel allows an authorized attacker to disclose information locally.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Jun 17, 2026
Apr 14, 2026
N/A· v4
5.5 MEDIUM· v3
N/A· v2
Insertion of sensitive information into log file in Windows Kernel allows an authorized attacker to disclose information locally.
1Microsoft
1Windows 11 26h1
Jun 17, 2026
Apr 14, 2026
N/A· v4
5.5 MEDIUM· v3
N/A· v2
Null pointer dereference in Windows Redirected Drive Buffering allows an authorized attacker to deny service locally.
1Microsoft
11Windows 10 1809
Windows 10 21h2Windows 10 22h2+8 more
Jun 17, 2026
Apr 14, 2026
N/A· v4
5.5 MEDIUM· v3
N/A· v2
Insertion of sensitive information into log file in Windows Kernel allows an authorized attacker to disclose information locally.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Jun 17, 2026
Apr 14, 2026
N/A· v4
5.5 MEDIUM· v3
N/A· v2
Improper access control in Universal Plug and Play (upnp.dll) allows an authorized attacker to disclose information locally.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Jun 17, 2026
Apr 14, 2026
N/A· v4
5.5 MEDIUM· v3
N/A· v2
Improper link resolution before file access ('link following') in Universal Plug and Play (upnp.dll) allows an authorized attacker to disclose information locally.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Aug 14, 2026
Apr 14, 2026
N/A· v4
4.3 MEDIUM· v3
N/A· v2
Protection mechanism failure in Windows Shell allows an unauthorized attacker to perform spoofing over a network.