CVE-2025-21335
HIGH CISA KEV EPSS 68.3%
Published Jan 14, 20251y ago · Modified Jun 17, 20262w ago
7.8 CVSS 3.1
Published Jan 14, 2025 1y ago
Last Modified Jun 17, 2026 2w ago
KEV Listed Jan 14, 2025 1y ago
KEV Due Feb 4, 2025 512d overdue
Description
Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High
Threat Intelligence
CISA Known Exploited Overdue 512d
- Added
- Jan 14, 2025
- Due
- Feb 4, 2025
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
EPSS Exploit Probability
68.3% percentile
Exploit & Patch Status
Actively Exploited (KEV)
Patch Available
Weaknesses 1
CWE-416 Use After Free Memory Safety
Affected Products 10
| Vendor | Product | Version | Range |
|---|---|---|---|
| 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 2
- msrc.microsoft.com https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21335
- cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-21335
Remediation
- msrc.microsoft.com https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21335