Medium 6.5Published Jan 13, 2026

CVE-2026-20847Microsoft Windows File Explorer Spoofing Vulnerability

Updated under an hour ago (Oct 26, 2026, 2:30 PM ET)

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It affects Microsoft Windows 10 Version 1607 and 16 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

Exposure of sensitive information to an unauthorized actor in Windows Shell allows an authorized attacker to perform spoofing over a network.

CVSS: 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
Weakness (CWE): CWE-200
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: Jul 30, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Microsoft Windows 10 Version 1607 microsoft:windows_10_1607	from 10.0.14393.0 before 10.0.14393.8783	CNA record
Microsoft Windows 10 Version 1809 microsoft:windows_10_1809	from 10.0.17763.0 before 10.0.17763.8276	CNA record
Microsoft Windows 10 Version 21H2 microsoft:windows_10_21h2	from 10.0.19044.0 before 10.0.19044.6809	CNA record
Microsoft Windows 10 Version 22H2 microsoft:windows_10_22h2	from 10.0.19045.0 before 10.0.19045.6809	CNA record
Microsoft Windows 11 version 23H2 microsoft:windows_11_23h2	from 10.0.22631.0 before 10.0.22631.6491	CNA record
Microsoft Windows 11 Version 24H2 microsoft:windows_11_24h2	from 10.0.26100.0 before 10.0.26100.7623	CNA record
Microsoft Windows 11 Version 25H2 microsoft:windows_11_25h2	from 10.0.26200.0 before 10.0.26200.7623	CNA record
Microsoft Windows Server 2008 R2 Service Pack 1 microsoft:windows_server_2008_r2_service_pack_1 (from the name)	from 6.1.7601.0 before 6.1.7601.28117	CNA record
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) microsoft:windows_server_2008_r2_service_pack_1_server_core_installation (from the name)	from 6.1.7601.0 before 6.1.7601.28117	CNA record
Microsoft Windows Server 2012 microsoft:windows_server_2012 (from the name)	from 6.2.9200.0 before 6.2.9200.25868	CNA record
1–10 of 30

References

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20847	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.