ZDI-CAN-28189
HIGH 7.5
Overdue
Dec 09, 2025
Microsoft
Microsoft has a high-severity vulnerability (CVSS 7.5) that requires local access and high-level privileges to exploit, but delivers significant impact across confidentiality, integrity, and availability. The attack cannot be performed remotely and does not require user interaction, making it a concern primarily for privileged insider threats or attackers with system-level access. Security teams should monitor for suspicious activity from high-privileged accounts and prioritize patching once Microsoft releases a fix by the April 8, 2026 deadline.
Advisory Details
Researcher
Discovered by:
fastfail
Reported
December 09, 2025
Deadline
April 08, 2026
9d overdue
CVSS Vector
AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H