CVE-2026-69305: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Description
CVE-2026-69305 is a use-after-free vulnerability in the Microsoft Windows Search Component affecting Windows 10 Version 1607 and other specified versions. This flaw allows an authorized attacker to elevate privileges over a network. The vulnerability has a high severity rating with a CVSS score of 7.1. An official fix is available from Microsoft.
CVSS v3.1
Score 7.1high
Affected software
Microsoft
Windows 10 Version 1607
Microsoft
Windows 10 Version 1809
Microsoft
Windows 10 Version 21H2
Microsoft
Windows 10 Version 22H2
Microsoft
Windows 11 version 23H2
Microsoft
Windows 11 Version 23H2
Microsoft
Windows 11 Version 24H2
Microsoft
Windows 11 Version 25H2
Microsoft
Windows 11 version 26H1
Microsoft
Windows Server 2012
Microsoft
Windows Server 2012 (Server Core installation)
Microsoft
Windows Server 2012 R2
Microsoft
Windows Server 2012 R2 (Server Core installation)
Microsoft
Windows Server 2016
Microsoft
Windows Server 2016 (Server Core installation)
Microsoft
Windows Server 2019
Microsoft
Windows Server 2019 (Server Core installation)
Microsoft
Windows Server 2022
Microsoft
Windows Server 2025
Microsoft
Windows Server 2025 (Server Core installation)
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-69305 is a use-after-free vulnerability (CWE-416) in the Microsoft Windows Search Component. It affects multiple builds of Windows 10, including Version 1607 and later versions up to specific build numbers. The vulnerability enables an authorized attacker to elevate privileges remotely over a network. The CVSS v3.1 vector indicates network attack vector, high complexity, low privileges required, user interaction required, and impacts confidentiality, integrity, and availability with high severity. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized attacker can exploit this use-after-free vulnerability remotely over a network to elevate their privileges, potentially gaining higher system rights. The impact includes full compromise of confidentiality, integrity, and availability of the affected system components.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security updates provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69305 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-03T20:46:07.441Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69305","vendor":"Microsoft"}]
Threat ID: 6aa044e2acd9273b49fa7dfd
Added to database: 09/08/2026, 17:24:50 UTC
Last enriched: 10/16/2026, 21:01:45 UTC
Last updated: 10/23/2026, 15:10:14 UTC
Views: 25
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