Medium 5.9Published Oct 13, 2026

CVE-2026-69982Active Directory Federation Services (AD FS) Security Feature Bypass Vulnerability

Updated under an hour ago (Oct 26, 2026, 5:40 PM ET)

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It affects Microsoft Windows 10 Version 1607 and 7 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Microsoft Windows 10 Version 1607

Exploited in the last 30 days

Weak authentication in Active Directory Federation Services (AD FS) allows an unauthorized attacker to bypass a security feature over a network.

CVSS: 5.9 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C
Weakness (CWE): CWE-1390
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: microsoft
NVD analysis: Analyzed
Record last updated: Oct 26, 2026
First seen by InfoSec Signals: Oct 13, 2026

Affected products

Affected products

Microsoft Windows 10 Version 1607 microsoft:windows_10_1607	from 10.0.14393.0 before 10.0.14393.9612	CNA record
Microsoft Windows 10 Version 1809 microsoft:windows_10_1809	from 10.0.17763.0 before 10.0.17763.9376	CNA record
Microsoft Windows Server 2012 R2 microsoft:windows_server_2012_r2 (from the name)	from 6.3.9600.0 before 6.3.9600.23470	CNA record
Microsoft Windows Server 2016 microsoft:windows_server_2016 (from the name)	from 10.0.14393.0 before 10.0.14393.9612	CNA record
Microsoft Windows Server 2019 microsoft:windows_server_2019 (from the name)	from 10.0.17763.0 before 10.0.17763.9376	CNA record
Microsoft Windows Server 2022 microsoft:windows_server_2022 (from the name)	from 10.0.20348.0 before 10.0.20348.5761	CNA record
Microsoft Windows Server 2025 microsoft:windows_server_2025 (from the name)	from 10.0.26100.0 before 10.0.26100.33650	CNA record
microsoft windows_10_1607 microsoft:windows_10_1607	before 10.0.14393.9612; before 10.0.14393.9612	NVD
microsoft windows_10_1809 microsoft:windows_10_1809	before 10.0.17763.9376; before 10.0.17763.9376	NVD
microsoft windows_server_2012 microsoft:windows_server_2012	r2	NVD
1–10 of 14

References

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69982	vendor-advisory, patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.