CVE-2025-64663 CRITICAL

CVE-2025-64663: Custom Question Answering Elevation of Privilege Vulnerability

Vendor Microsoft
Product Azure Cognitive Service for Language
Weakness CWE-918 · SSRF
Published December 18, 2025
Last update April 16, 2026
View on NVD All CVEs

CVSS base score

9.9/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C

What the vulnerability does

01Description

Custom Question Answering Elevation of Privilege Vulnerability

Key dates

02Disclosure timeline

December 18, 2025 CVE published
April 16, 2026 Record updated