SB2026011492 - Multiple vulnerabilities in Microsoft Windows File Explorer 

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Main Vulnerability Database SB2026011492

SB2026011492 - Multiple vulnerabilities in Microsoft Windows File Explorer

Published: January 14, 2026

Security Bulletin ID SB2026011492
Severity
Low
Patch available
YES
Number of vulnerabilities 5
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 5 secuirty vulnerabilities.


1) Information disclosure (CVE-ID: CVE-2026-20939)

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application in Windows File Explorer. A local user can gain unauthorized access to sensitive information on the system.


2) Information disclosure (CVE-ID: CVE-2026-20823)

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application in Windows File Explorer. A local user can gain unauthorized access to sensitive information on the system.


3) Information disclosure (CVE-ID: CVE-2026-20932)

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application in Windows File Explorer. A local user can gain unauthorized access to sensitive information on the system.


4) Race condition (CVE-ID: CVE-2026-20808)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition in Windows File Explorer. A local user can exploit the race and escalate privileges on the system.


5) Information disclosure (CVE-ID: CVE-2026-20937)

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application in Windows File Explorer. A local user can gain unauthorized access to sensitive information on the system.


Remediation

Install update from vendor's website.

References