CVE Watch—

CVE-2025-21333

Microsoft Windows Hyper-V NT Kernel Integration VSP Heap-based Buffer Overflow Vulnerability

CVSS

—

Sin CVSS

EPSS

9.8%

p95

KEV

SÍ

14 ene 2025

Exploit Today

0-100

Publicado: — · Última mod.: —

EPSS · 30d

9.8%EPSS · 30 días9.8%

2026-06-302026-07-17

Ficha del catálogo KEV

Producto

Microsoft / Windows

Vulnerabilidad

Microsoft Windows Hyper-V NT Kernel Integration VSP Heap-based Buffer Overflow Vulnerability

Añadido a KEV

14 ene 2025

Remediar antes de

4 feb 2025

Uso conocido en ransomware

Descripción resumida

Microsoft Windows Hyper-V NT Kernel Integration VSP contains a heap-based buffer overflow vulnerability that allows a local attacker to gain SYSTEM privileges.

Acción requerida

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Notas

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-21333 ; https://nvd.nist.gov/vuln/detail/CVE-2025-21333

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