CVE-2026-50495: CWE-284: Improper Access Control in Microsoft Windows 10 Version 1809
Improper access control in Microsoft Windows DNS allows an authorized attacker to perform tampering locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-50495) involves improper access control in the DNS functionality of Microsoft Windows 10 Version 1809 (build 10.0.17763.0). An attacker with local authorized privileges can exploit this flaw to tamper with the system. The CVSS v3.1 base score is 6.1, indicating medium severity, with low attack complexity and requiring local privileges but no user interaction. Microsoft has released an official fix for this vulnerability as documented in their security update guide.
Potential Impact
The vulnerability allows an authorized local attacker to tamper with the DNS component, potentially impacting system integrity and availability. Confidentiality is not affected. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft for Windows 10 Version 1809 (build 10.0.17763.0) as detailed in the Microsoft security update guide at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50495.
CVE-2026-50495: CWE-284: Improper Access Control in Microsoft Windows 10 Version 1809
Description
Improper access control in Microsoft Windows DNS allows an authorized attacker to perform tampering locally.
CVSS v3.1
Score 6.1medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-50495) involves improper access control in the DNS functionality of Microsoft Windows 10 Version 1809 (build 10.0.17763.0). An attacker with local authorized privileges can exploit this flaw to tamper with the system. The CVSS v3.1 base score is 6.1, indicating medium severity, with low attack complexity and requiring local privileges but no user interaction. Microsoft has released an official fix for this vulnerability as documented in their security update guide.
Potential Impact
The vulnerability allows an authorized local attacker to tamper with the DNS component, potentially impacting system integrity and availability. Confidentiality is not affected. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft for Windows 10 Version 1809 (build 10.0.17763.0) as detailed in the Microsoft security update guide at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50495.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T18:59:53.337Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50495","vendor":"Microsoft"}]
Threat ID: 6a5676a668715ace43f09643
Added to database: 07/14/2026, 17:49:26 UTC
Last enriched: 08/13/2026, 15:04:33 UTC
Last updated: 08/26/2026, 11:03:42 UTC
Views: 54
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