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 issue exists in the Windows Application Identity (AppID) Subsystem, allowing an attacker with local authorized access to disclose sensitive information. The CVSS 3.1 vector indicates low attack complexity and privileges required, with no user interaction needed. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized local attacker can disclose sensitive information due to this vulnerability. There is no impact on integrity or availability, but confidentiality is highly impacted. No known exploits are reported in the wild.
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-2026-45594 to remediate this vulnerability.
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
Microsoft
Windows 10 Version 1607
Microsoft
Windows 10 Version 1809
Microsoft
Windows 10 Version 21H2
Microsoft
Windows 10 Version 22H2
Microsoft
Windows 11 version 23H2
Microsoft
Windows 11 Version 23H2
Microsoft
Windows 11 Version 24H2
Microsoft
Windows 11 Version 25H2
Microsoft
Windows 11 version 26H1
Microsoft
Windows Server 2016
Microsoft
Windows Server 2016 (Server Core installation)
Microsoft
Windows Server 2019
Microsoft
Windows Server 2019 (Server Core installation)
Microsoft
Windows Server 2022
Microsoft
Windows Server 2025
Microsoft
Windows Server 2025 (Server Core installation)
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 issue exists in the Windows Application Identity (AppID) Subsystem, allowing an attacker with local authorized access to disclose sensitive information. The CVSS 3.1 vector indicates low attack complexity and privileges required, with no user interaction needed. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized local attacker can disclose sensitive information due to this vulnerability. There is no impact on integrity or availability, but confidentiality is highly impacted. No known exploits are reported in the wild.
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-2026-45594 to remediate this vulnerability.
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: 08/14/2026, 13:39:27 UTC
Last updated: 09/14/2026, 22:01:34 UTC
Views: 118
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