CVE-2026-20825: CWE-284: Improper Access Control in Microsoft Windows 10 Version 1809
Improper access control in Windows Hyper-V allows an authorized attacker to disclose information locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-20825) affects Microsoft Windows 10 Version 1809, specifically within the Windows Hyper-V component. It is classified as CWE-284 (Improper Access Control), enabling an authorized attacker with high privileges to locally disclose information that should otherwise be protected. The attack vector is local, requiring no user interaction, and the vulnerability does not impact integrity or availability, only confidentiality. The CVSS 3.1 base score is 4.4, reflecting medium severity. A patch is available to remediate this vulnerability.
Potential Impact
An attacker with authorized high-level privileges on the affected Windows 10 Version 1809 system can exploit this vulnerability to disclose sensitive information locally. There is no impact on system integrity or availability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
A patch is available for this vulnerability. It is recommended to apply the official Microsoft update for Windows 10 Version 1809 that addresses this improper access control issue in Hyper-V. No additional mitigation steps are indicated.
CVE-2026-20825: CWE-284: Improper Access Control in Microsoft Windows 10 Version 1809
Description
Improper access control in Windows Hyper-V allows an authorized attacker to disclose information locally.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-20825) affects Microsoft Windows 10 Version 1809, specifically within the Windows Hyper-V component. It is classified as CWE-284 (Improper Access Control), enabling an authorized attacker with high privileges to locally disclose information that should otherwise be protected. The attack vector is local, requiring no user interaction, and the vulnerability does not impact integrity or availability, only confidentiality. The CVSS 3.1 base score is 4.4, reflecting medium severity. A patch is available to remediate this vulnerability.
Potential Impact
An attacker with authorized high-level privileges on the affected Windows 10 Version 1809 system can exploit this vulnerability to disclose sensitive information locally. There is no impact on system integrity or availability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
A patch is available for this vulnerability. It is recommended to apply the official Microsoft update for Windows 10 Version 1809 that addresses this improper access control issue in Hyper-V. No additional mitigation steps are indicated.
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: 69668adda60475309f9adfd8
Added to database: 1/13/2026, 6:11:41 PM
Last enriched: 4/3/2026, 12:42:49 PM
Last updated: 5/10/2026, 9:24:05 AM
Views: 103
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