CVE-2026-97788 HIGH

CVE-2026-97788: Active Directory Federation Services (AD FS) Information Disclosure Vulnerability

Vendor Microsoft
Product Microsoft .NET Framework 3.5
Weakness CWE-203
Published October 13, 2026
Last update October 23, 2026
View on NVD All CVEs

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity None

CVSS vector

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

What the vulnerability does

01Description

Observable discrepancy in Active Directory Federation Services (AD FS) allows an unauthorized attacker to disclose information over a network.

Key dates

02Disclosure timeline

October 13, 2026 CVE published
October 23, 2026 Record updated