CVE-2026-27909: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-27909) involves a use-after-free condition in the Windows Search Component of Microsoft Windows 10 Version 1607. An authorized local attacker could exploit this flaw to elevate their privileges on the system. The CVSS 3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability. Microsoft has published an official fix to remediate the vulnerability, as detailed in their security advisory.
Potential Impact
Successful exploitation of this vulnerability allows an authorized local attacker to elevate privileges, potentially gaining higher-level access than intended. This could lead to full system compromise depending on the privileges gained. The vulnerability affects confidentiality, integrity, and availability of the system.
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-2026-27909 to remediate this vulnerability. No additional mitigation steps are indicated by the vendor.
CVE-2026-27909: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Description
Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.8high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-27909) involves a use-after-free condition in the Windows Search Component of Microsoft Windows 10 Version 1607. An authorized local attacker could exploit this flaw to elevate their privileges on the system. The CVSS 3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability. Microsoft has published an official fix to remediate the vulnerability, as detailed in their security advisory.
Potential Impact
Successful exploitation of this vulnerability allows an authorized local attacker to elevate privileges, potentially gaining higher-level access than intended. This could lead to full system compromise depending on the privileges gained. The vulnerability affects confidentiality, integrity, and availability of the system.
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-2026-27909 to remediate this vulnerability. No additional mitigation steps are indicated by the vendor.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-02-24T21:35:49.686Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27909","vendor":"Microsoft"}]
Threat ID: 69de7a1d82d89c981fd6a734
Added to database: 4/14/2026, 5:32:13 PM
Last enriched: 5/19/2026, 10:37:19 AM
Last updated: 5/30/2026, 12:52:11 AM
Views: 50
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