CVE-2026-78451: Microsoft Windows SCSI Class System File Elevation of Privilege Vulnerability
Microsoft Windows SCSI Class System File Elevation of Privilege Vulnerability
Other sources
Untrusted pointer dereference in Microsoft Windows SCSI Class System File allows an unauthorized attacker to elevate privileges with a physical attack.
— Microsoft
Affected Software
Remediation
Event History
Frequently Asked Questions
Who is realistically exposed to this vulnerability?
Systems running the listed Microsoft Windows 10, Windows 11, Windows Server 2019, Windows Server 2022, or Windows Server 2025 products are in scope. Exploitation requires physical attack access, so exposure is greatest where an attacker can directly access the device or its hardware interfaces.
Does an attacker need an account or user interaction to exploit this issue?
No privileges are required and no user interaction is required according to the provided severity vector. The attacker does need physical access.
What is the potential impact if exploitation succeeds?
A successful exploit can elevate the attacker's privileges. The provided vector also rates confidentiality, integrity, and availability impact as high.