CVE-2025-64663

9.9 CRITICAL

Published: December 18, 2025 Modified: December 19, 2025

Description

Custom Question Answering Elevation of Privilege Vulnerability

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Patch Vendor Advisory Exploit Third Party Advisory

Source: secure@microsoft.com

1 reference(s) from NVD

CVSS v3 Score

9.9 / 10.0

EPSS (Exploit Probability)

0.1%

20th percentile

Exploitation Status

Not in CISA KEV

CWE-918