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CVE-2026-33096

HIGH CVSS 3.1: 7.5
Updated Apr 17, 2026
Microsoft
Parameter Value
CVSS 7.5 (HIGH)
Affected Versions before 10.0.28000.1836
Fixed In 10.0.22631.6936
Type CWE-125 (Out-of-bounds Read)
Vendor Microsoft
Public PoC No

Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products 11

Configuration From (including) Up to (excluding)
Microsoft Windows_11_23h2
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:*
10.0.22631.6936
Microsoft Windows_11_23h2
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:*
10.0.22631.6936
Microsoft Windows_11_24h2
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:*
10.0.26100.8246
Microsoft Windows_11_24h2
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:*
10.0.26100.8246
Microsoft Windows_11_25h2
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:*
10.0.26200.8246
Microsoft Windows_11_25h2
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:*
10.0.26200.8246
Microsoft Windows_11_26h1
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:*
10.0.28000.1836
Microsoft Windows_11_26h1
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:*
10.0.28000.1836
Microsoft Windows_Server_2022
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
10.0.20348.5020
Microsoft Windows_Server_2022_23h2
cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*
10.0.25398.2274
Microsoft Windows_Server_2025
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*
10.0.26100.32690