CVE-2026-96857: Windows Projected File System Information Disclosure Vulnerability
Files or directories accessible to external parties in Windows Projected File System allows an authorized attacker to disclose information locally.
Other sources
Windows Projected File System Information Disclosure 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 10.0.19044.7807Patch KB5126657 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26300.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.22631.7652Patch KB5126653 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.5761Patch KB5126655 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.33650Patch KB5126646 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.17763.9376Patch KB5126651 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.28000.3231Patch KB5127646
Event History
Frequently Asked Questions
Who can exploit this issue?
An attacker must be authorized to access the affected Windows system and exploit the issue locally. The vulnerability does not describe a remote attack path or any required user interaction.
What is the likely impact of successful exploitation?
Successful exploitation can disclose information. The provided severity vector indicates high confidentiality impact, with no stated integrity or availability impact.
Which systems should be reviewed?
Review deployments of Microsoft Windows 10, Windows 11, Windows Server 2019, Windows Server 2022, and Windows Server 2025 that use Windows Projected File System and expose files or directories to external parties.