Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability
51Vexday Risk Score
Prioritize patching. It under exploitation confirmed by CISA.
ssvc Actcvss 7epss 1.3%
from disclosure to weapon
Published on NVDMar 11
CISA KEVMar 11
exploitation probability
1.3%top 30% of all CVEs
observed exploitation
yesCISA + VulnCheck
Action required by CISAfederal deadline: 2025-04-01
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
In short
A flaw in Windows allows an authorized user to regain access to memory that has already been freed, potentially letting them gain higher privileges on the system.
Technical detail
Use-after-free vulnerability in Win32 Kernel Subsystem (CWE-416) allows a local authenticated attacker to elevate privileges by referencing freed memory; requires prior system access and successful exploitation of memory allocation patterns.
Summary generated and translated by AI from the official description.
Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
Affected products
Microsoft · Windows 10 Version 1507Microsoft · Windows 10 Version 1607Microsoft · Windows Server 2008 R2 Service Pack 1Microsoft · Windows Server 2008 R2 Service Pack 1 (Server Core installation)Microsoft · Windows Server 2008 Service Pack 2Microsoft · Windows Server 2008 Service Pack 2 (Server Core installation)Microsoft · Windows Server 2012Microsoft · Windows Server 2012 R2Microsoft · Windows Server 2012 R2 (Server Core installation)Microsoft · Windows Server 2012 (Server Core installation)Microsoft · Windows Server 2016Microsoft · Windows Server 2016 (Server Core installation)