CVE-2026-33096— HTTP.sys Denial of Service Vulnerability
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I. Basic Information for CVE-2026-33096
Vulnerability Information
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Vulnerability Title
HTTP.sys Denial of Service Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存读
Source: NVD (National Vulnerability Database)
Vulnerability Title
Microsoft HTTP.sys 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft HTTP.sys是美国微软（Microsoft）公司的一个HTTP应用协议。 Microsoft HTTP.sys存在缓冲区错误漏洞。攻击者利用该漏洞导致系统拒绝服务。以下产品和版本受到影响：Windows 11 Version 26H1 for ARM64-based Systems,Windows 11 version 26H1 for x64-based Systems,Windows Server 2022,Windows Server 2022 (Server Core in
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Microsoft | Windows 11 version 22H3 | 10.0.22631.0 ~ 10.0.22631.6936 | - | |
| Microsoft | Windows 11 Version 23H2 | 10.0.22631.0 ~ 10.0.22631.6936 | - | |
| Microsoft | Windows 11 Version 24H2 | 10.0.26100.0 ~ 10.0.26100.8246 | - | |
| Microsoft | Windows 11 Version 25H2 | 10.0.26200.0 ~ 10.0.26200.8246 | - | |
| Microsoft | Windows 11 version 26H1 | 10.0.28000.0 ~ 10.0.28000.1836 | - | |
| Microsoft | Windows Server 2022 | 10.0.20348.0 ~ 10.0.20348.5020 | - | |
| Microsoft | Windows Server 2022, 23H2 Edition (Server Core installation) | 10.0.25398.0 ~ 10.0.25398.2274 | - | |
| Microsoft | Windows Server 2025 | 10.0.26100.0 ~ 10.0.26100.32690 | - | |
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0 ~ 10.0.26100.32690 | - |
II. Public POCs for CVE-2026-33096
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Microsoft · 2026-04-14 · 163 CVEs total
| CVE-2026-33824 | 9.8 CRITICAL | Windows Internet Key Exchange (IKE) Service Extensions Remote Code Execution Vulnerability |
| CVE-2026-26149 | 9.0 CRITICAL | Microsoft Power Apps Desktop Client Spoofing Vulnerability |
| CVE-2026-32225 | 8.8 HIGH | Windows Shell Security Feature Bypass Vulnerability |
| CVE-2026-26167 | 8.8 HIGH | Windows Push Notifications Elevation of Privilege Vulnerability |
| CVE-2026-32157 | 8.8 HIGH | Remote Desktop Client Remote Code Execution Vulnerability |
| CVE-2026-33120 | 8.8 HIGH | Microsoft SQL Server Remote Code Execution Vulnerability |
| CVE-2026-32171 | 8.8 HIGH | Azure Logic Apps Elevation of Privilege Vulnerability |
| CVE-2026-26178 | 8.8 HIGH | Windows Advanced Rasterization Platform Elevation of Privilege Vulnerability |
| CVE-2026-27928 | 8.7 HIGH | Windows Hello Security Feature Bypass Vulnerability |
| CVE-2026-32221 | 8.4 HIGH | Windows Graphics Component Remote Code Execution Vulnerability |
| CVE-2026-32091 | 8.4 HIGH | Microsoft Brokering File System Elevation of Privilege Vulnerability |
| CVE-2026-32162 | 8.4 HIGH | Windows COM Elevation of Privilege Vulnerability |
| CVE-2026-33115 | 8.4 HIGH | Microsoft Word Remote Code Execution Vulnerability |
| CVE-2026-33114 | 8.4 HIGH | Microsoft Word Remote Code Execution Vulnerability |
| CVE-2026-32190 | 8.4 HIGH | Microsoft Office Remote Code Execution Vulnerability |
| CVE-2026-33827 | 8.1 HIGH | Windows TCP/IP Remote Code Execution Vulnerability |
| CVE-2026-27912 | 8.0 HIGH | Windows Kerberos Elevation of Privilege Vulnerability |
| CVE-2026-33826 | 8.0 HIGH | Windows Active Directory Remote Code Execution Vulnerability |
| CVE-2026-33098 | 7.8 HIGH | Windows Container Isolation FS Filter Driver Elevation of Privilege Vulnerability |
| CVE-2026-23657 | 7.8 HIGH | Microsoft Word Remote Code Execution Vulnerability |
Showing top 20 of 163 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Windows 11 version 22H3
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Microsoft Brokering File System Elevation of Privilege Vulne - CVE-2026-26179
Windows Kernel Elevation of Privilege Vulnerability
Same vendor: Microsoft
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Azure Managed Instance for Apache Cassandra Remote Code Exec
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Open5GS NF client.c ogs_sbi_client_send_via_scp_or_sepp out- - CVE-2026-3508
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V. Comments for CVE-2026-33096
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