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Windows 11 26h1

windows_11_26h1

Vendor: Microsoft • 2,034 CVEs

CVEs (2,034)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Oct 23, 2026
Oct 13, 2026
N/A· v4
7.0 HIGH· v3
N/A· v2
Use after free in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Oct 23, 2026
Oct 13, 2026
N/A· v4
8.0 HIGH· v3
N/A· v2
Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to elevate privileges over a network.
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Oct 23, 2026
Oct 13, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Oct 23, 2026
Oct 13, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Graphic Fonts allows an unauthorized attacker to execute code over a network.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Oct 23, 2026
Oct 13, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Windows kernel32.dll allows an authorized attacker to elevate privileges locally.
1Microsoft
11Windows 10 1809
Windows 10 21h2Windows 10 22h2+8 more
Oct 26, 2026
Oct 13, 2026
N/A· v4
5.5 MEDIUM· v3
N/A· v2
Missing authentication for critical function in Windows SmartScreen allows an authorized attacker to perform tampering locally.
1Microsoft
7Windows 10 21h2
Windows 10 22h2Windows 11 23h2+4 more
Oct 26, 2026
Oct 13, 2026
N/A· v4
5.5 MEDIUM· v3
N/A· v2
Improper link resolution before file access ('link following') in Windows Backup Engine allows an authorized attacker to disclose information locally.
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Oct 26, 2026
Oct 13, 2026
N/A· v4
6.8 MEDIUM· v3
N/A· v2
Use of a broken or risky cryptographic algorithm in Windows Remote Desktop allows an unauthorized attacker to bypass a security feature over a network.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Oct 26, 2026
Oct 13, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Improper resource shutdown or release in Windows UEFI allows an authorized attacker to bypass a security feature locally.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Oct 26, 2026
Oct 13, 2026
N/A· v4
7.0 HIGH· v3
N/A· v2
Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Oct 26, 2026
Oct 13, 2026
N/A· v4
5.3 MEDIUM· v3
N/A· v2
Out-of-bounds read in Windows Kernel allows an unauthorized attacker to deny service over a network.
1Microsoft
11Windows 10 1809
Windows 10 21h2Windows 10 22h2+8 more
Oct 26, 2026
Oct 13, 2026
N/A· v4
7.0 HIGH· v3
N/A· v2
Use after free in Windows Update Delivery Optimization allows an authorized attacker to elevate privileges locally.
1Microsoft
4Windows 11 24h2
Windows 11 25h2Windows 11 26h1+1 more
Oct 26, 2026
Oct 13, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Improper resolution of path equivalence in Windows SmartScreen allows an unauthorized attacker to bypass a security feature over a network.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Oct 26, 2026
Oct 13, 2026
N/A· v4
5.5 MEDIUM· v3
N/A· v2
Exposure of sensitive system information to an unauthorized control sphere in Windows Kernel allows an authorized attacker to disclose information locally.
1Microsoft
9Windows 10 1809
Windows 10 21h2Windows 10 22h2+6 more
Oct 26, 2026
Oct 13, 2026
N/A· v4
7.0 HIGH· v3
N/A· v2
Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Oct 26, 2026
Oct 13, 2026
N/A· v4
8.1 HIGH· v3
N/A· v2
Use after free in Windows Message Queuing allows an unauthorized attacker to execute code over a network.
1Microsoft
11Windows 10 1809
Windows 10 21h2Windows 10 22h2+8 more
Oct 23, 2026
Oct 13, 2026
N/A· v4
7.0 HIGH· v3
N/A· v2
Time-of-check time-of-use (toctou) race condition in Windows Modern Device Management (MDM) allows an authorized attacker to elevate privileges locally.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Oct 23, 2026
Oct 13, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.
1Microsoft
7Windows 10 21h2
Windows 10 22h2Windows 11 23h2+4 more
Oct 23, 2026
Oct 13, 2026
N/A· v4
7.0 HIGH· v3
N/A· v2
Improper link resolution before file access ('link following') in Windows Backup Engine allows an authorized attacker to elevate privileges locally.
1Microsoft
14Windows 10 1607
Windows 10 1809Windows 10 21h2+11 more
Oct 16, 2026
Oct 13, 2026
N/A· v4
6.5 MEDIUM· v3
N/A· v2
Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.