CVE-2026-50389: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in Microsoft Windows 10 Version 1607
CVE-2026-50389 is a medium severity vulnerability in Microsoft Windows 10 Version 1607 where sensitive information can be exposed to an unauthorized local attacker via Windows File Explorer. The vulnerability allows an authorized attacker with local access to disclose sensitive information without user interaction. An official fix is available from Microsoft.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-50389) involves an exposure of sensitive information (CWE-200) in Windows File Explorer on Windows 10 Version 1607 (build 10.0.14393.0). An attacker with local privileges can disclose sensitive information without requiring user interaction. The CVSS 3.1 base score is 5.5 (medium severity), reflecting local attack vector, low complexity, low privileges required, no user interaction, and high confidentiality impact. Microsoft has published an official fix to address this issue.
Potential Impact
An authorized local attacker can access sensitive information that should be protected, potentially leading to information disclosure. There is no impact on integrity or availability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50389 to remediate this vulnerability.
CVE-2026-50389: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in Microsoft Windows 10 Version 1607
Description
CVE-2026-50389 is a medium severity vulnerability in Microsoft Windows 10 Version 1607 where sensitive information can be exposed to an unauthorized local attacker via Windows File Explorer. The vulnerability allows an authorized attacker with local access to disclose sensitive information without user interaction. An official fix is available from Microsoft.
CVSS v3.1
Score 5.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-50389) involves an exposure of sensitive information (CWE-200) in Windows File Explorer on Windows 10 Version 1607 (build 10.0.14393.0). An attacker with local privileges can disclose sensitive information without requiring user interaction. The CVSS 3.1 base score is 5.5 (medium severity), reflecting local attack vector, low complexity, low privileges required, no user interaction, and high confidentiality impact. Microsoft has published an official fix to address this issue.
Potential Impact
An authorized local attacker can access sensitive information that should be protected, potentially leading to information disclosure. There is no impact on integrity or availability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50389 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T18:55:14.745Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50389","vendor":"Microsoft"}]
Threat ID: 6a56769768715ace43f08e46
Added to database: 07/14/2026, 17:49:11 UTC
Last enriched: 07/15/2026, 00:04:13 UTC
Last updated: 07/15/2026, 00:04:13 UTC
Views: 2
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.