What is CVE-2026-57084?

CVE-2026-57084 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Windows File Explorer Information Disclosure Vulnerability

Which CVE IDs does CVE-2026-57084 cover?

CVE-2026-57084 covers the following CVE IDs: CVE-2026-57084. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-57084?

CVE-2026-57084 has a CVSS v3 base score of 5.5, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-57084?

CVE-2026-57084 affects 4 products, including: Microsoft Office 365 for Mac; Microsoft Office LTSC for Mac 2021; Microsoft Office LTSC for Mac 2024; Microsoft Office for Android.

CVE-2026-57084HighCVSS 5.5

Windows File Explorer Information Disclosure Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

July 17, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-57084 →

📋 Description

Use of uninitialized resource in Windows File Explorer allows an unauthorized attacker to disclose information locally.

🎯 Affected products4

Microsoft Office 365 for Mac
Microsoft Office LTSC for Mac 2021
Microsoft Office LTSC for Mac 2024
Microsoft Office for Android

✅ Remediation

KBRelease Notes (Security Update) — fixed build 16.0.20430.20000 KBRelease Notes (Security Update) — fixed build 16.112.26090911

🔗 References (3)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57084
patchhttps://support.microsoft.com/en-us/microsoft-365
patchhttps://learn.microsoft.com/en-us/officeupdates/release-notes-office-for-mac