CVE-2025-24983: Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability

Overview

Severity

High (CVSS 7)

CVSS Vector

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

Category

Elevation of Privilege

Exploit Status

Actively Exploited

Exploitation Likelihood

Detected

Patch Tuesday

2025-Mar

Released

2025-03-11

EPSS Score

0.57% (percentile: 68.5%)

CISA KEV

Listed — due 2025-04-01

Description

Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.

FAQ

According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability? Successful exploitation of this vulnerability requires an attacker to win a race condition. What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

Affected Products (16)

Windows

• Windows 10 for 32-bit Systems
• Windows 10 for x64-based Systems
• Windows 10 Version 1607 for 32-bit Systems
• Windows 10 Version 1607 for x64-based Systems
• Windows Server 2016
• Windows Server 2016 (Server Core installation)

ESU

• Windows Server 2008 for 32-bit Systems Service Pack 2
• Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
• Windows Server 2008 for x64-based Systems Service Pack 2
• Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
• Windows Server 2008 R2 for x64-based Systems Service Pack 1
• Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
• Windows Server 2012
• Windows Server 2012 (Server Core installation)
• Windows Server 2012 R2
• Windows Server 2012 R2 (Server Core installation)

Security Updates (8)

• 5053618
• 5053594
• 5053888
• 5053995
• 5053620
• 5053627
• 5053886
• 5053887

Acknowledgments

Filip Jurčacko with <a href="https://www.eset.com/">ESET</a>

Revision History

• 2025-03-11: Information published.