Dashboard / CVE-2025-21335

CVE-2025-21335

CISA KEV
ACT NOW Priority: 0.00 BB Relevance: 0/100
Published: N/A Modified: N/A First seen: 2026-10-29 Status: pending_score

Description

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

CISA Known Exploited Vulnerability

Vendor / Product Microsoft — Windows
Date Added 2025-01-14
Remediation Due 2025-02-04
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-21335 ; https://nvd.nist.gov/vuln/detail/CVE-2025-21335

Weakness Classification (1)

Affected Software (10)

VendorProductVersion
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_22h2 < 10.0.22621.4751
microsoft windows_11_23h2 < 10.0.22631.4751
microsoft windows_11_23h2 < 10.0.22631.4751
microsoft windows_11_24h2 < 10.0.26100.2894
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

References & Advisories (2)

Bug Bounty Relevance

0 / 100
✓ Known exploited (KEV)

CVSS Score

Unscored

EPSS — Exploitation Probability

1.40%
Raw Score 0.014010
Percentile 72.4%
Date 2026-10-28

Intelligence Sources

kev ref →

External Links