KEV Entry

CVE-2025-21335

Known Exploited Vulnerability Entry External Catalog

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Entry Details
Confirmed Exploited

CVE-2025-21335

2025-01-14 00:00 UTC

Timestamps

2025-01-14

2025-01-14

Scope

KEVIntel entry: Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability | Affected: Microsoft / Windows 10 Version 21H2, Windows 10 Version 22H2, Windows 11 version 22H2, Windows 11 version 22H3, Windows 11 Version 23H2, Windows 11 Version 24H2, Windows Server 2022, 23H2 Edition (Server Core installation), Windows Server 2025, Windows Server 2025 (Server Core installation) | CVSS: 7.8 (HIGH) | EPSS: 0.01363 | Used in malware: unknown | Not yet in CISA KEV: False

References
  • {'id': 'CVE-2025-21335', 'url': 'https://www.cve.org/CVERecord?id=CVE-2025-21335'}
  • {'id': 'kevintel', 'url': 'https://kevintel.com/vuln/CVE-2025-21335'}

fd82d1a9-65eb-4b43-bb11-1619a4d2cfca

caeb2787-0d58-4236-9039-7c86c3e566f3

2026-06-23 14:06 UTC

2026-06-23 14:06 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
public_report kevintel successful_exploitation 0.70
View details 
{
  "added_date": "2025-01-14T00:00:00.000Z",
  "ahead_of_cisa_kev": null,
  "cvss_score": 7.8,
  "cvss_severity": "HIGH",
  "epss_percentile": 0.68169,
  "epss_score": 0.01363,
  "feed": "KEVIntel (kevintel.com)",
  "not_yet_in_cisa_kev": false,
  "product": "Windows 10 Version 21H2, Windows 10 Version 22H2, Windows 11 version 22H2, Windows 11 version 22H3, Windows 11 Version 23H2, Windows 11 Version 24H2, Windows Server 2022, 23H2 Edition (Server Core installation), Windows Server 2025, Windows Server 2025 (Server Core installation)",
  "title": "Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability",
  "used_in_malware": "unknown",
  "vendor": "Microsoft"
}
 -
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