CVE-2026-34340: CWE-416: Use After Free in Microsoft Windows 10 Version 1809
Use after free in Windows Projected File System allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
CVE-2026-34340 is a use-after-free vulnerability (CWE-416) affecting Windows Projected File System in Windows 10 Version 1809 (build 10.0.17763.0). The vulnerability enables a local attacker with low privileges to elevate their privileges due to improper handling of memory in the affected component. Microsoft has published an official security update to remediate this vulnerability.
Potential Impact
Successful exploitation of this vulnerability could allow an authorized local attacker to elevate their privileges, potentially gaining higher-level access to the system. This could lead to full system compromise depending on the privileges obtained. There are no known exploits in the wild at this time.
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-2026-34340 to remediate this vulnerability.
CVE-2026-34340: CWE-416: Use After Free in Microsoft Windows 10 Version 1809
Description
Use after free in Windows Projected File System allows an authorized attacker to elevate privileges locally.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-34340 is a use-after-free vulnerability (CWE-416) affecting Windows Projected File System in Windows 10 Version 1809 (build 10.0.17763.0). The vulnerability enables a local attacker with low privileges to elevate their privileges due to improper handling of memory in the affected component. Microsoft has published an official security update to remediate this vulnerability.
Potential Impact
Successful exploitation of this vulnerability could allow an authorized local attacker to elevate their privileges, potentially gaining higher-level access to the system. This could lead to full system compromise depending on the privileges obtained. There are no known exploits in the wild at this time.
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-2026-34340 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-03-26T21:02:16.446Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34340","vendor":"Microsoft"}]
Threat ID: 6a036540cbff5d861008c481
Added to database: 5/12/2026, 5:37:04 PM
Last enriched: 5/12/2026, 7:22:57 PM
Last updated: 5/13/2026, 4:59:15 AM
Views: 2
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