Windows HID Driver Integer Overflow (CVE-2025-48816): Local Privilege Escalation Alert

Introduction

A critical integer overflow vulnerability (CVE-2025-48816) in the Windows HID Class Driver has emerged, posing a significant threat to systems running Windows 10, Windows 11, and Windows Server editions. This flaw enables local attackers with standard user privileges to escalate their access to SYSTEM-level, potentially compromising entire systems.

Technical Information

The vulnerability originates from an integer overflow or wraparound (CWE-190) within the HID Class Driver (hidclass.sys). This kernel-mode driver processes input from human interface devices (HID), such as keyboards and mice. Maliciously crafted input data can trigger incorrect memory allocation, resulting in heap-based buffer corruption. Successful exploitation requires local access and execution of specially crafted code, allowing attackers to escalate from standard user privileges to SYSTEM-level access.

Attack Vectors

Local Access: Exploitation requires local system access, either physically or via remote desktop sessions.
Malicious Input: Attackers must execute specifically crafted code to exploit the integer overflow vulnerability.

Patch Information

Microsoft has addressed this vulnerability in their July 2023 security updates. Key updates include:

Windows 11 Version 22H2: Update KB5028185 (OS Build 22621.1992)
Windows 11 Version 21H2: Update KB5028182 (OS Build 22000.2176)
Windows Server 2008 SP2: Update KB5028222 (Monthly Rollup)
Windows Server 2012 R2: Update KB5028228 (Monthly Rollup)

These updates are critical for maintaining system integrity and protecting against potential exploits.

Affected Systems and Versions

Windows 10 (all versions prior to July 2023 updates)
Windows 11 (all versions prior to July 2023 updates)
Windows Server 2008 SP2
Windows Server 2012 R2

Vendor Security History

Microsoft has a consistent track record of addressing HID-related vulnerabilities promptly. Previous similar vulnerabilities, such as CVE-2019-19307, were also swiftly patched, demonstrating Microsoft's proactive approach to security management.

References

Source: This report was created using AI

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An integer overflow vulnerability in Windows HID Class Driver (CVE-2025-48816) allows local attackers to escalate privileges to SYSTEM-level. Immediate patching advised.

CVE Analysis