HIGHCVSS 7.8Actively exploited · CISA KEV since 2025-01-14Vulnerability
CVE-2025-21333
Microsoft Windows Hyper-V NT Kernel Integration VSP contains a heap-based buffer overflow vulnerability that allows a local attacker to gain SYSTEM privileges.
Properties
- Euvd product
- Windows 10 Version 21H2, Windows 10 Version 22H2, Windows 11 Version 24H2, Windows Server 2025 (Server Core installation), Windows 11 version 22H2, Windows Server 2022, 23H2 Edition (Server Core installation), Windows 11 version 22H3, Windows 11 Version 23H2, Windows Server 2025
- Vulnerability name
- Microsoft Windows Hyper-V NT Kernel Integration VSP Heap-based Buffer Overflow Vulnerability
- First seen
- 2026-06-09T18:30:14+00:00
- Cvss score
- 7.8
- Epss score
- 0.09988
- Last seen
- 2026-10-19T12:00:27+00:00
- Year
- 2025
- Due date
- 2025-02-04
- Euvd assigner
- microsoft
- Retrieved at
- 2026-10-21T01:24:47+00:00
- Exploited euvd since
- 2025-01-14T00:00:00+00:00
- Src batch id
- epss_history-20261020T103617Z-728ddd
- Source url
- https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
- Date added
- 2025-01-14
- Score
- 7.8
- Euvd base score version
- 3.1
- Fetched at
- 2026-10-20T10:36:20+00:00
- Euvd vendor
- Microsoft
- Updated at
- 2026-04-09T23:39:55.224419+00:00
- Cvss vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Related Entities (10)
AFFECTS_PRODUCT (7)
DESCRIBES (1)
HAS_WEAKNESS (1)
INVOLVES (1)
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