CVE-2026-20821: 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 Remote Procedure Call allows an unauthorized attacker to disclose information locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-20821) affects Windows 10 Version 1607 (build 10.0.14393.0) and involves an information disclosure flaw in the Windows Remote Procedure Call component. It allows an unauthorized attacker with local access to the system to obtain sensitive information. The attack vector requires local access with low complexity and no privileges or user interaction. The vulnerability does not impact integrity or availability. Microsoft has released a patch to remediate this issue.
Potential Impact
Successful exploitation results in unauthorized disclosure of sensitive information on affected Windows 10 Version 1607 systems. There is no impact on system integrity or availability. The vulnerability requires local access and does not require privileges or user interaction, limiting the attack scope to local attackers.
Mitigation Recommendations
A patch is available for this vulnerability. It is recommended to apply the official Microsoft update for Windows 10 Version 1607 to remediate this issue. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-20821: 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 Remote Procedure Call allows an unauthorized attacker to disclose information locally.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-20821) affects Windows 10 Version 1607 (build 10.0.14393.0) and involves an information disclosure flaw in the Windows Remote Procedure Call component. It allows an unauthorized attacker with local access to the system to obtain sensitive information. The attack vector requires local access with low complexity and no privileges or user interaction. The vulnerability does not impact integrity or availability. Microsoft has released a patch to remediate this issue.
Potential Impact
Successful exploitation results in unauthorized disclosure of sensitive information on affected Windows 10 Version 1607 systems. There is no impact on system integrity or availability. The vulnerability requires local access and does not require privileges or user interaction, limiting the attack scope to local attackers.
Mitigation Recommendations
A patch is available for this vulnerability. It is recommended to apply the official Microsoft update for Windows 10 Version 1607 to remediate this issue. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2025-12-03T05:54:20.374Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69668adba60475309f9adf9d
Added to database: 1/13/2026, 6:11:39 PM
Last enriched: 4/3/2026, 12:42:19 PM
Last updated: 5/9/2026, 9:09:47 AM
Views: 96
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