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

Quick assessment

Affected
Microsoft Microsoft .NET Framework 3.5
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

活动目录联合服务（AD FS）中存在可观察到的差异漏洞，允许未经授权的攻击者通过网络泄露信息。

CVSS 7.5 · High

Affected Version Matrix 29

VendorProduct Version RangeStatus
Microsoft Microsoft .NET Framework 3.5 3.5.0< 2.0.50727.9188 AND 3.0.30729.9171 affected
Microsoft Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 3.0.0.0< 2.0.50727.8987 AND 3.0.30729.8982 AND 4.7.4150.0 affected
Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 4.7.0< 2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0 affected
Microsoft Microsoft .NET Framework 3.5 AND 4.8 4.8.0< 2.0.50727.9073 AND 3.0.30729.9070 AND 4.8.4811.0 affected
Microsoft Microsoft .NET Framework 3.5 AND 4.8.1 4.8.1< 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0 affected
Microsoft Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 4.7.0< 4.7.4150.0 affected
Microsoft Microsoft .NET Framework 4.8 4.8.0< 4.8.4811.0 affected
Microsoft Microsoft .NET Framework 4.8.1 4.8.0.0< 4.8.9363.0 affected
Microsoft Windows 10 Version 1607 10.0.14393.0< 10.0.14393.9612 affected
Microsoft Windows 10 Version 1809 10.0.17763.0< 10.0.17763.9376 affected
Microsoft Windows 10 Version 21H2 10.0.19044.0< 10.0.19044.7807 affected
Microsoft Windows 10 Version 22H2 10.0.19045.0< 10.0.19044.7807 affected
Microsoft Windows 11 version 23H2 10.0.22631.0< 10.0.22631.7652 affected
Microsoft Windows 11 Version 23H2 10.0.22631.0< 10.0.22631.7652 affected
Microsoft Windows 11 Version 24H2 10.0.26100.0< 10.0.26100.9711 affected
Microsoft Windows 11 Version 25H2 10.0.26200.0< 10.0.26200.9711 affected
Microsoft Windows 11 version 26H1 10.0.28000.0< 10.0.28000.3231 affected
Microsoft Windows 11 Version 26H2 10.0.26300.0< 10.0.26300.9711 affected
Microsoft Windows Server 2012 6.2.9200.0< 6.2.9200.26434 affected
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0< 6.2.9200.26434 affected
Microsoft Windows Server 2012 R2 6.3.9600.0< 6.3.9600.23470 affected
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0< 6.3.9600.23470 affected
Microsoft Windows Server 2016 10.0.14393.0< 10.0.14393.9612 affected
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0< 10.0.14393.9612 affected
Microsoft Windows Server 2019 10.0.17763.0< 10.0.17763.9376 affected
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0< 10.0.17763.9376 affected
Microsoft Windows Server 2022 10.0.20348.0< 10.0.20348.5761 affected
Microsoft Windows Server 2025 10.0.26100.0< 10.0.26100.33650 affected
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0< 10.0.26100.33650 affected
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I. Basic Information for CVE-2026-97788

Vulnerability Information
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Vulnerability Title
Active Directory Federation Services (AD FS) Information Disclosure Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Observable discrepancy in Active Directory Federation Services (AD FS) allows an unauthorized attacker to disclose information over a network.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过差异性导致的信息暴露
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Microsoft Microsoft .NET Framework 3.5 3.5.0 ~ 2.0.50727.9188 AND 3.0.30729.9171 -
Microsoft Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 3.0.0.0 ~ 2.0.50727.8987 AND 3.0.30729.8982 AND 4.7.4150.0 -
Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 4.7.0 ~ 2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0 -
Microsoft Microsoft .NET Framework 3.5 AND 4.8 4.8.0 ~ 2.0.50727.9073 AND 3.0.30729.9070 AND 4.8.4811.0 -
Microsoft Microsoft .NET Framework 3.5 AND 4.8.1 4.8.1 ~ 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0 -
Microsoft Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 4.7.0 ~ 4.7.4150.0 -
Microsoft Microsoft .NET Framework 4.8 4.8.0 ~ 4.8.4811.0 -
Microsoft Microsoft .NET Framework 4.8.1 4.8.0.0 ~ 4.8.9363.0 -
Microsoft Windows 10 Version 1607 10.0.14393.0 ~ 10.0.14393.9612 -
Microsoft Windows 10 Version 1809 10.0.17763.0 ~ 10.0.17763.9376 -
Microsoft Windows 10 Version 21H2 10.0.19044.0 ~ 10.0.19044.7807 -
Microsoft Windows 10 Version 22H2 10.0.19045.0 ~ 10.0.19044.7807 -
Microsoft Windows 11 version 23H2 10.0.22631.0 ~ 10.0.22631.7652 -
Microsoft Windows 11 Version 23H2 10.0.22631.0 ~ 10.0.22631.7652 -
Microsoft Windows 11 Version 24H2 10.0.26100.0 ~ 10.0.26100.9711 -
Microsoft Windows 11 Version 25H2 10.0.26200.0 ~ 10.0.26200.9711 -
Microsoft Windows 11 version 26H1 10.0.28000.0 ~ 10.0.28000.3231 -
Microsoft Windows 11 Version 26H2 10.0.26300.0 ~ 10.0.26300.9711 -
Microsoft Windows Server 2012 6.2.9200.0 ~ 6.2.9200.26434 -
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 ~ 6.2.9200.26434 -
Microsoft Windows Server 2012 R2 6.3.9600.0 ~ 6.3.9600.23470 -
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 ~ 6.3.9600.23470 -
Microsoft Windows Server 2016 10.0.14393.0 ~ 10.0.14393.9612 -
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 ~ 10.0.14393.9612 -
Microsoft Windows Server 2019 10.0.17763.0 ~ 10.0.17763.9376 -
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 ~ 10.0.17763.9376 -
Microsoft Windows Server 2022 10.0.20348.0 ~ 10.0.20348.5761 -
Microsoft Windows Server 2025 10.0.26100.0 ~ 10.0.26100.33650 -
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 ~ 10.0.26100.33650 -

II. Public POCs for CVE-2026-97788

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III. Intelligence Information for CVE-2026-97788

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Vendor Advisories for CVE-2026-97788 (1)

Same Patch Batch · Microsoft · 2026-10-13 · 1407 CVEs total

CVE-2026-69705 9.8 CRITICAL Windows iSCSI Remote Code Execution Vulnerability
CVE-2026-70242 9.8 CRITICAL Microsoft Office Outlook Remote Code Execution Vulnerability
CVE-2026-88178 9.8 CRITICAL Microsoft Office PowerPoint Remote Code Execution Vulnerability
CVE-2026-88156 9.8 CRITICAL Microsoft Office Outlook Remote Code Execution Vulnerability
CVE-2026-100222 9.8 CRITICAL Network Policy Server (NPS) Remote Code Execution Vulnerability
CVE-2026-85928 9.8 CRITICAL Windows Volume Manager Extension Driver Remote Code Execution Vulnerability
CVE-2026-96096 9.8 CRITICAL Windows Media Player Remote Code Execution Vulnerability
CVE-2026-70291 9.8 CRITICAL Microsoft Office Outlook Remote Code Execution Vulnerability
CVE-2026-96934 9.8 CRITICAL Windows DHCP Server Remote Code Execution Vulnerability
CVE-2026-96924 9.8 CRITICAL Windows OLE Remote Code Execution Vulnerability
CVE-2026-97816 9.8 CRITICAL Microsoft OpenSSH for Windows Remote Code Execution Vulnerability
CVE-2026-83770 9.8 CRITICAL Windows Text Shaping Remote Code Execution Vulnerability
CVE-2026-97814 9.8 CRITICAL Windows Text Shaping Remote Code Execution Vulnerability
CVE-2026-97815 9.8 CRITICAL Windows Error Reporting Remote Code Execution Vulnerability
CVE-2026-96113 9.8 CRITICAL Windows Domain Name Service Remote Code Execution Vulnerability
CVE-2026-97805 9.8 CRITICAL Windows Partition Management Driver Remote Code Execution Vulnerability
CVE-2026-83748 9.8 CRITICAL Windows Error Reporting Remote Code Execution Vulnerability
CVE-2026-96909 9.8 CRITICAL Windows BitLocker Remote Code Execution Vulnerability
CVE-2026-69634 9.8 CRITICAL Windows iSCSI Remote Code Execution Vulnerability
CVE-2026-85814 9.8 CRITICAL Microsoft Windows Media Foundation Remote Code Execution Vulnerability

Showing top 20 of 1407 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Microsoft .NET Framework 3.5
Same vendor: Microsoft
Same weakness: CWE-203

V. Comments for CVE-2026-97788

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