CVE-2025-21333 vulnerability in Microsoft Products
Published on January 14, 2025
Known Exploited Vulnerability
This Microsoft Windows Hyper-V NT Kernel Integration VSP Heap-based Buffer Overflow Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Microsoft Windows Hyper-V NT Kernel Integration VSP contains a heap-based buffer overflow vulnerability that allows a local attacker to gain SYSTEM privileges.
The following remediation steps are recommended / required by February 4, 2025: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Vulnerability Analysis
CVE-2025-21333 can be exploited with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. It has an exploitability score of 1.8 out of four. The potential impact of an exploit of this vulnerability is considered to be very high.
Products Associated with CVE-2025-21333
You can be notified by stack.watch whenever vulnerabilities like CVE-2025-21333 are published in these products:
What versions are vulnerable to CVE-2025-21333?
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Microsoft Windows 11 23h2
Fixed in Version 10.0.22631.4751
x64
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Microsoft Windows 10 22h2
Fixed in Version 10.0.19045.5371
x64
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Microsoft Windows 10 21h2
Fixed in Version 10.0.19044.5371
x64
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Microsoft Windows 11 22h2
Fixed in Version 10.0.22621.4751
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Microsoft Windows 11 24h2
Fixed in Version 10.0.26100.2894
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Microsoft Windows 11 23h2
Fixed in Version 10.0.22621.4751
arm64
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Microsoft Windows Server 2022 23h2
Fixed in Version 10.0.25398.1369
x64
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Microsoft Windows Server 2025
Fixed in Version 10.0.26100.2894
x64