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CVE-2026-97788

nvd nist
Published: Oct 13, 2026Modified: Oct 16, 2026

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Exploitability: 3.9 / Impact: 3.6
Source: secure@microsoft.com (Secondary)

Description

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

Affected (44)

Microsoft
15 products
Windows 10 1607
Windows 10 1809
Windows 10 21h2
Windows 10 22h2
Windows 11 23h2
Windows 11 24h2
Windows 11 25h2
Windows 11 26h1
Windows 11 26h2
Windows Server 2012
Windows Server 2016
Windows Server 2019
Windows Server 2022
Windows Server 2025
.net Framework
Configuration A
26 vulnerable
Vulnerable SoftwareAffected Versions
Microsoft
Windows 10 1607
version < 10.0.14393.9612
Windows 10 1607
version < 10.0.14393.9612
Microsoft
Windows 10 1809
version < 10.0.17763.9376
Windows 10 1809
version < 10.0.17763.9376
Microsoft
Windows 10 21h2
version < 10.0.19044.7807
Windows 10 21h2
version < 10.0.19044.7807
Windows 10 21h2
version < 10.0.19044.7807
Microsoft
Windows 10 22h2
version < 10.0.19045.7807
Windows 10 22h2
version < 10.0.19045.7807
Windows 10 22h2
version < 10.0.19045.7807
Microsoft
Windows 11 23h2
version < 10.0.22631.7652
Windows 11 23h2
version < 10.0.22631.7652
Microsoft
Windows 11 24h2
version < 10.0.26100.9711
Windows 11 24h2
version < 10.0.26100.9711
Microsoft
Windows 11 25h2
version < 10.0.26200.9711
Windows 11 25h2
version < 10.0.26200.9711
Microsoft
Windows 11 26h1
version < 10.0.28000.3231
Windows 11 26h1
version < 10.0.28000.3231
Microsoft
Windows 11 26h2
version < 10.0.26300.9711
Windows 11 26h2
version < 10.0.26300.9711
Microsoft
Windows Server 2012
All versions
Windows Server 2012
Version r2
Windows Server 2016
version < 10.0.14393.9612
Windows Server 2019
version < 10.0.17763.9376
Windows Server 2022
version < 10.0.20348.5761
Windows Server 2025
version < 10.0.26100.33650
Configuration B
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
.net Framework
Version 4.8.1
Running on/withPlatform Versions
Microsoft
Windows 11 26h1
All versions
Configuration C
1 vulnerable · 4 platform
Vulnerable SoftwareAffected Versions
.net Framework
Version 4.8
Running on/withPlatform Versions
Microsoft
Windows 10 1607
All versions
Microsoft
Windows Server 2012
All versions
Microsoft
Windows Server 2012
Version r2
Microsoft
Windows Server 2016
All versions
Configuration D
4 vulnerable · 2 platform
Vulnerable SoftwareAffected Versions
Microsoft
.net Framework
Version 4.6.2
.net Framework
Version 4.7.1
.net Framework
Version 4.7.2
.net Framework
Version 4.7
Running on/withPlatform Versions
Microsoft
Windows Server 2012
All versions
Microsoft
Windows Server 2012
Version r2
Configuration E
2 vulnerable · 8 platform
Vulnerable SoftwareAffected Versions
Microsoft
.net Framework
Version 3.5
.net Framework
Version 4.8.1
Running on/withPlatform Versions
Microsoft
Windows 10 21h2
All versions
Microsoft
Windows 10 22h2
All versions
Microsoft
Windows 11 23h2
All versions
Microsoft
Windows 11 24h2
All versions
Microsoft
Windows 11 25h2
All versions
Microsoft
Windows 11 26h2
All versions
Microsoft
Windows Server 2022
All versions
Microsoft
Windows Server 2025
All versions
Configuration F
2 vulnerable · 5 platform
Vulnerable SoftwareAffected Versions
Microsoft
.net Framework
Version 3.5
.net Framework
Version 4.8
Running on/withPlatform Versions
Microsoft
Windows 10 1809
All versions
Microsoft
Windows 10 21h2
All versions
Microsoft
Windows 10 22h2
All versions
Microsoft
Windows Server 2019
All versions
Microsoft
Windows Server 2022
All versions
Configuration G
2 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Microsoft
.net Framework
Version 3.5
.net Framework
Version 4.7.2
Running on/withPlatform Versions
Microsoft
Windows 10 1809
All versions
Configuration H
5 vulnerable · 3 platform
Vulnerable SoftwareAffected Versions
Microsoft
.net Framework
Version 3.5
.net Framework
Version 4.6.2
.net Framework
Version 4.7.1
.net Framework
Version 4.7.2
.net Framework
Version 4.7
Running on/withPlatform Versions
Microsoft
Windows 10 1607
All versions
Microsoft
Windows Server 2016
All versions
Microsoft
Windows Server 2019
All versions
Configuration I
1 vulnerable · 3 platform
Vulnerable SoftwareAffected Versions
.net Framework
Version 3.5
Running on/withPlatform Versions
Microsoft
Windows 11 26h1
All versions
Microsoft
Windows Server 2012
All versions
Microsoft
Windows Server 2012
Version r2

Related CWEs

CWE-203
Observable Discrepancy
The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.

References (1)

Source: secure@microsoft.com
Vendor Advisory

Timeline

No history available yet.