CVE-2026-57084: Windows File Explorer Information Disclosure Vulnerability
Use of uninitialized resource in Windows File Explorer allows an unauthorized attacker to disclose information locally.
Other sources
Windows File Explorer 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 10.0.28000.2525Patch KB5101649 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.8875Patch KB5101650 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19045.7548Patch KB5099539 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.33158Patch KB5099536 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19044.7548Patch KB5099539 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.3.9600.23291Patch KB5099444 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.14393.9339Patch KB5099535 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.2.9200.26226Patch KB5099445 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.5386Patch KB5099540 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.17763.9020Patch KB5099538 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.8875Patch KB5101650
Event History
Frequently Asked Questions
What is the severity of CVE-2026-57084?
The severity of CVE-2026-57084 is classified as medium with a CVSS score of 5.5.
How do I fix CVE-2026-57084?
To fix CVE-2026-57084, apply the latest security update provided by Microsoft for the affected Windows versions.
What systems are affected by CVE-2026-57084?
CVE-2026-57084 affects Microsoft Windows 10, Windows 11, and multiple versions of Windows Server including Server 2012, 2016, 2019, and 2025.
What type of vulnerability is CVE-2026-57084?
CVE-2026-57084 is an information disclosure vulnerability due to the use of uninitialized resources in Windows File Explorer.
Can CVE-2026-57084 be exploited locally?
Yes, CVE-2026-57084 allows an unauthorized attacker to disclose information locally.