CVE-2026-49805: CWE-284: Improper Access Control in Microsoft Windows 10 Version 1607
CVE-2026-49805 is a high-severity vulnerability in Microsoft Windows 10 Version 1607 involving improper access control in the Win32K component. It allows an authorized local attacker to elevate privileges. An official fix is available from Microsoft to address this issue.
AI Analysis
Technical Summary
This vulnerability in Windows 10 Version 1607's Win32K subsystem is due to improper access control, enabling a local attacker with some level of authorization to escalate their privileges. The CVSS 3.1 score of 7.0 reflects high severity, with high impact on confidentiality, integrity, and availability. Microsoft has published an official fix for this vulnerability, as documented in their security update guide.
Potential Impact
An authorized local attacker can exploit this vulnerability to elevate privileges, potentially gaining higher system rights than intended. This can lead to full system compromise, including unauthorized access to sensitive data and disruption of system operations.
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-2026-49805 to remediate this vulnerability.
CVE-2026-49805: CWE-284: Improper Access Control in Microsoft Windows 10 Version 1607
Description
CVE-2026-49805 is a high-severity vulnerability in Microsoft Windows 10 Version 1607 involving improper access control in the Win32K component. It allows an authorized local attacker to elevate privileges. An official fix is available from Microsoft to address this issue.
CVSS v3.1
Score 7.0high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Windows 10 Version 1607's Win32K subsystem is due to improper access control, enabling a local attacker with some level of authorization to escalate their privileges. The CVSS 3.1 score of 7.0 reflects high severity, with high impact on confidentiality, integrity, and availability. Microsoft has published an official fix for this vulnerability, as documented in their security update guide.
Potential Impact
An authorized local attacker can exploit this vulnerability to elevate privileges, potentially gaining higher system rights than intended. This can lead to full system compromise, including unauthorized access to sensitive data and disruption of system operations.
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-2026-49805 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-01T17:02:37.208Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49805","vendor":"Microsoft"}]
Threat ID: 6a566f7268715ace43e6b6d7
Added to database: 07/14/2026, 17:18:42 UTC
Last enriched: 07/15/2026, 01:32:59 UTC
Last updated: 07/15/2026, 01:32:59 UTC
Views: 2
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