CVE-2026-45594: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in Microsoft Windows 10 Version 1607
Exposure of sensitive information to an unauthorized actor in Windows Application Identity (AppID) Subsystem allows an authorized attacker to disclose information locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-45594) affects Windows 10 Version 1607 (build 10.0.14393.0) and is classified as CWE-200, indicating exposure of sensitive information to unauthorized actors. The flaw exists in the Windows Application Identity (AppID) Subsystem, enabling an attacker with local authorized access to disclose sensitive information. The CVSS 3.1 base score is 5.5 (medium severity), with attack vector local, low attack complexity, low privileges required, no user interaction, and high confidentiality impact. Microsoft has released an official fix for this vulnerability as documented in their security update guide.
Potential Impact
An attacker with local authorized access can exploit this vulnerability to disclose sensitive information from the Windows Application Identity (AppID) Subsystem. The confidentiality impact is high, but integrity and availability are not affected. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. It is recommended to apply the security update provided by Microsoft for Windows 10 Version 1607 (build 10.0.14393.0) as detailed in the Microsoft Security Response Center advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45594. No additional mitigation actions are indicated by the vendor.
CVE-2026-45594: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in Microsoft Windows 10 Version 1607
Description
Exposure of sensitive information to an unauthorized actor in Windows Application Identity (AppID) Subsystem allows an authorized attacker to disclose information locally.
CVSS v3.1
Score 5.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-45594) affects Windows 10 Version 1607 (build 10.0.14393.0) and is classified as CWE-200, indicating exposure of sensitive information to unauthorized actors. The flaw exists in the Windows Application Identity (AppID) Subsystem, enabling an attacker with local authorized access to disclose sensitive information. The CVSS 3.1 base score is 5.5 (medium severity), with attack vector local, low attack complexity, low privileges required, no user interaction, and high confidentiality impact. Microsoft has released an official fix for this vulnerability as documented in their security update guide.
Potential Impact
An attacker with local authorized access can exploit this vulnerability to disclose sensitive information from the Windows Application Identity (AppID) Subsystem. The confidentiality impact is high, but integrity and availability are not affected. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. It is recommended to apply the security update provided by Microsoft for Windows 10 Version 1607 (build 10.0.14393.0) as detailed in the Microsoft Security Response Center advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45594. No additional mitigation actions are indicated by the vendor.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-12T19:55:45.730Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45594","vendor":"Microsoft"}]
Threat ID: 6a284ce18dd33fbd85664e03
Added to database: 06/09/2026, 17:26:57 UTC
Last enriched: 07/29/2026, 21:59:09 UTC
Last updated: 07/31/2026, 21:26:44 UTC
Views: 94
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