CVE-2026-50465: CWE-284: Improper Access Control in Microsoft Windows 11 Version 24H2
Improper access control in Microsoft Windows DNS allows an authorized attacker to perform tampering locally.
AI Analysis
Technical Summary
This vulnerability, tracked as CVE-2026-50465, is categorized under CWE-284 (Improper Access Control) and affects Microsoft Windows 11 Version 24H2 (build 10.0.26100.0). It allows an authorized attacker with local access to perform tampering actions within the Windows DNS service. The CVSS v3.1 base score is 7.1, indicating high severity, with attack vector local, low attack complexity, and low privileges required. The vulnerability impacts integrity and availability but does not affect confidentiality. Microsoft has published an official fix to remediate this issue.
Potential Impact
An authorized local attacker can exploit this vulnerability to tamper with the Windows DNS service, potentially causing disruption or unauthorized changes affecting system integrity and availability. Confidentiality is not impacted. There are no known exploits in the wild at this time.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. It is recommended to apply the provided security update from the Microsoft Security Response Center as soon as possible to remediate the issue.
CVE-2026-50465: CWE-284: Improper Access Control in Microsoft Windows 11 Version 24H2
Description
Improper access control in Microsoft Windows DNS allows an authorized attacker to perform tampering locally.
CVSS v3.1
Score 7.1high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, tracked as CVE-2026-50465, is categorized under CWE-284 (Improper Access Control) and affects Microsoft Windows 11 Version 24H2 (build 10.0.26100.0). It allows an authorized attacker with local access to perform tampering actions within the Windows DNS service. The CVSS v3.1 base score is 7.1, indicating high severity, with attack vector local, low attack complexity, and low privileges required. The vulnerability impacts integrity and availability but does not affect confidentiality. Microsoft has published an official fix to remediate this issue.
Potential Impact
An authorized local attacker can exploit this vulnerability to tamper with the Windows DNS service, potentially causing disruption or unauthorized changes affecting system integrity and availability. Confidentiality is not impacted. There are no known exploits in the wild at this time.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. It is recommended to apply the provided security update from the Microsoft Security Response Center as soon as possible to remediate the issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T18:59:17.978Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50465","vendor":"Microsoft"}]
Threat ID: 6a5676a268715ace43f09517
Added to database: 07/14/2026, 17:49:22 UTC
Last enriched: 08/13/2026, 14:59:14 UTC
Last updated: 08/25/2026, 22:52:12 UTC
Views: 65
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