Microsoft Windows Win32k Use-After-Free Vulnerability
Microsoft — Windows
- Added to KEV catalog
- 11 March 2025
- Federal remediation due date
- 1 April 2025
- Weakness classification (CWE)
- CWE-416
CISA Description
Microsoft Windows Win32 Kernel Subsystem contains a use-after-free vulnerability that allows an authorized attacker to elevate privileges locally.
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-24983 ; https://nvd.nist.gov/vuln/detail/CVE-2025-24983
More Microsoft Vulnerabilities
Microsoft Windows Ancillary Function Driver for WinSock Use-After-Free Vulnerability
Microsoft SharePoint Deserialization of Untrusted Data Vulnerability
Microsoft SharePoint Deserialization of Untrusted Data Vulnerability
Microsoft Active Directory Federation Services Insufficient Granularity of Access Control Vulnerability
Microsoft SharePoint Server Missing Authentication for Critical Function Vulnerability
Is this vulnerability present in your environment?
CRS delivers independent VAPT assessments that identify exactly which known-exploited vulnerabilities exist in your network, applications, and infrastructure.
Explore VAPT Services