CVE-2026-27916: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in the Windows Universal Plug and Play (UPnP) Device Host on Windows 10 Version 1607 (build 10.0.14393.0). An authorized local attacker can exploit this flaw to elevate privileges, potentially gaining higher system rights. The CVSS v3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability. Microsoft has published an official patch to remediate this vulnerability.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges, which can lead to full control over the affected system. The vulnerability impacts confidentiality, integrity, and availability of the system. There are no reports of active exploitation in the wild.
Mitigation Recommendations
An official fix is available from Microsoft. It is recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27916 to remediate this vulnerability. No additional mitigation steps are indicated by the vendor.
CVE-2026-27916: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Description
Use after free in Windows Universal Plug and Play (UPnP) Device Host 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 involves a use-after-free condition in the Windows Universal Plug and Play (UPnP) Device Host on Windows 10 Version 1607 (build 10.0.14393.0). An authorized local attacker can exploit this flaw to elevate privileges, potentially gaining higher system rights. The CVSS v3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability. Microsoft has published an official patch to remediate this vulnerability.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges, which can lead to full control over the affected system. The vulnerability impacts confidentiality, integrity, and availability of the system. There are no reports of active exploitation in the wild.
Mitigation Recommendations
An official fix is available from Microsoft. It is recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27916 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
- 2026-02-24T21:35:49.687Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27916","vendor":"Microsoft"}]
Threat ID: 69de7a2182d89c981fd6a7d0
Added to database: 4/14/2026, 5:32:17 PM
Last enriched: 5/19/2026, 10:38:10 AM
Last updated: 5/31/2026, 12:29:05 AM
Views: 49
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