CVE-2026-40408: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in Windows Kernel-Mode Drivers on Windows 10 Version 1607. An authorized attacker with local access can exploit this flaw to elevate their privileges on the affected system. The CVSS v3.1 base score is 7.8, indicating a high severity level. Microsoft has released an official fix to remediate this vulnerability.
Potential Impact
Successful exploitation of this vulnerability could allow a local attacker with authorized access to elevate their privileges, potentially gaining higher system rights. This could lead to full system compromise depending on the privileges gained. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official patch is available from Microsoft to address this vulnerability. It is recommended to apply the update provided in the Microsoft security advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40408 to remediate this issue.
CVE-2026-40408: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Description
Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a use-after-free condition in Windows Kernel-Mode Drivers on Windows 10 Version 1607. An authorized attacker with local access can exploit this flaw to elevate their privileges on the affected system. The CVSS v3.1 base score is 7.8, indicating a high severity level. Microsoft has released an official fix to remediate this vulnerability.
Potential Impact
Successful exploitation of this vulnerability could allow a local attacker with authorized access to elevate their privileges, potentially gaining higher system rights. This could lead to full system compromise depending on the privileges gained. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official patch is available from Microsoft to address this vulnerability. It is recommended to apply the update provided in the Microsoft security advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40408 to remediate this issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-04-13T00:27:50.798Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40408","vendor":"Microsoft"}]
Threat ID: 6a036557cbff5d861008c9c4
Added to database: 05/12/2026, 17:37:27 UTC
Last enriched: 06/19/2026, 17:39:31 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 84
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