CVE-2025-21333— Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability
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I. Basic Information for CVE-2025-21333
Vulnerability Information
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Vulnerability Title
Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
堆缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
Microsoft Hyper-V 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Hyper-V是美国微软（Microsoft）公司的一个应用程序。一种系统管理程序虚拟化技术，能够实现桌面虚拟化。 Microsoft Hyper-V存在安全漏洞。攻击者利用该漏洞可以提升权限。以下产品和版本受到影响：Windows 10 Version 21H2 for x64-based Systems,Windows 11 Version 22H2 for ARM64-based Systems,Windows 11 Version 22H2 for x64-based Syst
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)
Shenlong Deep Dive — AI Deep Analysis
10-question deep dive: root cause, exploitation, mitigation, urgency. Read summary free, full version requires login.
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Microsoft | Windows 10 Version 21H2 | 10.0.19044.0 ~ 10.0.19044.5371 | - | |
| Microsoft | Windows 10 Version 22H2 | 10.0.19045.0 ~ 10.0.19045.5371 | - | |
| Microsoft | Windows 11 version 22H2 | 10.0.22621.0 ~ 10.0.22621.4751 | - | |
| Microsoft | Windows 11 version 22H3 | 10.0.22631.0 ~ 10.0.22631.4751 | - | |
| Microsoft | Windows 11 Version 23H2 | 10.0.22631.0 ~ 10.0.22631.4751 | - | |
| Microsoft | Windows 11 Version 24H2 | 10.0.26100.0 ~ 10.0.26100.2894 | - | |
| Microsoft | Windows Server 2022, 23H2 Edition (Server Core installation) | 10.0.25398.0 ~ 10.0.25398.1369 | - | |
| Microsoft | Windows Server 2025 | 10.0.26100.0 ~ 10.0.26100.2894 | - | |
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0 ~ 10.0.26100.2894 | - |
II. Public POCs for CVE-2025-21333
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | Poc exploit for CVE-2025-21333 heap-based buffer overflow. It leverages WNF state data and I/O ring IOP_MC_BUFFER_ENTRY | https://github.com/MrAle98/CVE-2025-21333-POC | POC Details |
| 2 | POC exploit for CVE-2025-21333 heap-based buffer overflow. It leverages WNF state data and I/O ring IOP_MC_BUFFER_ENTRY | https://github.com/Mukesh-blend/CVE-2025-21333-POC | POC Details |
| 3 | KQL para deteccion de CVE-2025-21333 en Sentinel | https://github.com/aleongx/KQL_sentinel_CVE-2025-21333 | POC Details |
| 4 | POC exploit for CVE-2025-21333 heap-based buffer overflow. It leverages WNF state data and I/O ring IOP_MC_BUFFER_ENTRY | https://github.com/SerabiLem/CVE-2025-21333-POC | POC Details |
| 5 | POC exploit for CVE-2025-21333 heap-based buffer overflow. It leverages WNF state data and I/O ring IOP_MC_BUFFER_ENTRY | https://github.com/160102/CVE-2025-21333-POC | POC Details |
| 6 | CVE-2025-21333 | https://github.com/B1ack4sh/Blackash-CVE-2025-21333 | POC Details |
| 7 | 🛠️ Exploit CVE-2025-21333 in vkrnlintvsp.sys with this proof of concept, aimed at demonstrating potential threats on Windows 11 systems. | https://github.com/pradip022/CVE-2025-21333-POC | POC Details |
| 8 | Lab project analyzing Hyper-V kernel crash behavior (CVE-2025-21333) using WinDbg and Windows internals | https://github.com/rahul0xkr/Reproducing-CVE-2025-21333- | POC Details |
| 9 | CVE-2025-21333 | https://github.com/Ashwesker/Blackash-CVE-2025-21333 | POC Details |
| 10 | CVE-2025-21333 | https://github.com/Ashwesker/Ashwesker-CVE-2025-21333 | POC Details |
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Same Patch Batch · Microsoft · 2025-01-14 · 157 CVEs total
| CVE-2025-21298 | 9.8 CRITICAL | Windows OLE Remote Code Execution Vulnerability |
| CVE-2025-21311 | 9.8 CRITICAL | Windows NTLM V1 Elevation of Privilege Vulnerability |
| CVE-2025-21307 | 9.8 CRITICAL | Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability |
| CVE-2025-21292 | 8.8 HIGH | Windows Search Service Elevation of Privilege Vulnerability |
| CVE-2025-21266 | 8.8 HIGH | Windows Telephony Service Remote Code Execution Vulnerability |
| CVE-2025-21282 | 8.8 HIGH | Windows Telephony Service Remote Code Execution Vulnerability |
| CVE-2025-21293 | 8.8 HIGH | Active Directory Domain Services Elevation of Privilege Vulnerability |
| CVE-2025-21291 | 8.8 HIGH | Windows Direct Show Remote Code Execution Vulnerability |
| CVE-2025-21302 | 8.8 HIGH | Windows Telephony Service Remote Code Execution Vulnerability |
| CVE-2025-21303 | 8.8 HIGH | Windows Telephony Service Remote Code Execution Vulnerability |
| CVE-2025-21306 | 8.8 HIGH | Windows Telephony Service Remote Code Execution Vulnerability |
| CVE-2025-21176 | 8.8 HIGH | .NET, .NET Framework, and Visual Studio Remote Code Execution Vulnerability |
| CVE-2025-21178 | 8.8 HIGH | Visual Studio Remote Code Execution Vulnerability |
| CVE-2025-21273 | 8.8 HIGH | Windows Telephony Service Remote Code Execution Vulnerability |
| CVE-2025-21223 | 8.8 HIGH | Windows Telephony Service Remote Code Execution Vulnerability |
| CVE-2025-21240 | 8.8 HIGH | Windows Telephony Service Remote Code Execution Vulnerability |
| CVE-2025-21238 | 8.8 HIGH | Windows Telephony Service Remote Code Execution Vulnerability |
| CVE-2025-21417 | 8.8 HIGH | Windows Telephony Service Remote Code Execution Vulnerability |
| CVE-2025-21245 | 8.8 HIGH | Windows Telephony Service Remote Code Execution Vulnerability |
| CVE-2025-21409 | 8.8 HIGH | Windows Telephony Service Remote Code Execution Vulnerability |
Showing top 20 of 157 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
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Azure Managed Instance for Apache Cassandra Remote Code Exec
Same weakness: CWE-122
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V. Comments for CVE-2025-21333
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