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MSRC compact vulnerability detail

CVE-2026-20932 · Windows File Explorer Information Disclosure Vulnerability

Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally.

Severity
Important
Impact
Information Disclosure
CVSS
5.5 base · 4.8 temporal
Release
2026-01-13
Signals
Windows File Explorer Information Disclosure Exploited: No Publicly disclosed: No Exploitability: Exploitation Unlikely
CWE
CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Patch Diff
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Resolved binary override
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Description
Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally.
FAQ / Articles
Windows File Explorer Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally.
FAQ
What type of information could be disclosed by this vulnerability? The type of information that could be disclosed if an attacker successfully exploited this vulnerability is an address from an object operating at a High Integrity Level in a contained ("sandboxed") execution environment. Please refer to AppContainer isolation and Mandatory Integrity Control for more information.