CVE-2026-20847: Microsoft Windows File Explorer Spoofing Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows Shell allows an authorized attacker to perform spoofing over a network.
Other sources
Microsoft Windows File Explorer Spoofing Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.3.9600.22968Patch KB5073696 - Upgrade
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Fixed in 6.1.7601.28117Patch KB5073699 - Upgrade
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Fixed in 6.2.9200.25868Patch KB5073698 - Upgrade
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Fixed in 10.0.14393.8783Patch KB5073722 - Upgrade
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Fixed in 10.0.26100.32230Patch KB5073379 - Upgrade
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Fixed in 10.0.26100.7623Patch KB5074109 - Upgrade
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Fixed in 10.0.25398.2092Patch KB5073450 - Upgrade
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Fixed in 10.0.26200.7623Patch KB5074109 - Upgrade
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Fixed in 10.0.22631.6491Patch KB5073455 - Upgrade
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Fixed in 10.0.19045.6809Patch KB5073724 - Upgrade
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Fixed in 10.0.19044.6809Patch KB5073724 - Upgrade
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Fixed in 10.0.17763.8276Patch KB5073723 - Upgrade
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Fixed in 10.0.20348.4648Patch KB5073457
Event History
Frequently Asked Questions
What is the severity of CVE-2026-20847?
CVE-2026-20847 is classified as a spoofing vulnerability that allows the exposure of sensitive information.
How do I fix CVE-2026-20847?
To fix CVE-2026-20847, apply the recommended security updates provided by Microsoft for your specific Windows version.
What versions of Microsoft Windows are affected by CVE-2026-20847?
CVE-2026-20847 affects multiple versions of Microsoft Windows, including Windows 10, Windows 11, and various Windows Server editions.
What are the potential impacts of CVE-2026-20847?
The potential impacts of CVE-2026-20847 include unauthorized access to sensitive information due to spoofing attacks.
Is there a patch available for CVE-2026-20847?
Yes, Microsoft has made patches available to address CVE-2026-20847 for the affected Windows products.