CVEvulnerability

CVE-2025-21335

7.8 HIGH Known exploited Published 2025-01-14 Modified 2026-09-24 Official page ↗

CISA Known Exploited Vulnerability

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

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

Added to KEV
2025-01-14
Remediation due
2025-02-04
Ransomware use
Unknown
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Notes
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-21335 ; https://nvd.nist.gov/vuln/detail/CVE-2025-21335
Status
Analyzed
Published
2025-01-14
Last modified
2026-09-24
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-416

Description

Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability

Affected configurations

• microsoft windows 10 21h2 (< 10.0.19044.5371) • microsoft windows 10 22h2 (< 10.0.19045.5371) • microsoft windows 11 22h2 (< 10.0.22621.4751) • microsoft windows 11 23h2 (< 10.0.22631.4751) • microsoft windows 11 24h2 (< 10.0.26100.2894) • microsoft windows server 2022 23h2 (< 10.0.25398.1369) • microsoft windows server 2025 (< 10.0.26100.2894)

Related

Weakness · CWE (1)

References