Home / Vulnerabilities / CVE-2025-21334
HIGH SEVERITY
CVE-2025-21334 Microsoft · Windows

Microsoft Windows Hyper-V NT Kernel Integration VSP Use-After-Free Vulnerability

Technical Severity

CVSS v3.1 Metrics

HIGH
7.8 / 10
Minimal Risk Critical
Vector Specification
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Exploitation Likelihood

EPSS Prediction

4.13 %
Predictive Probability
Percentile Rank
88.4 th

Documented as more likely to be exploited than 88.4% of known CVEs.

Detection Date

Jan 14, 2025

Remediation Due

Feb 04, 2025

CISA Catalog Active

Threat Analysis

Microsoft Windows Hyper-V NT Kernel Integration VSP contains a use-after-free vulnerability that allows a local attacker to gain SYSTEM privileges.

Remediation Directive

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

External Intelligence