CVE-2026-56183: CWE-416: Use After Free in Microsoft Windows 11 Version 24H2
Use after free in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-56183) involves a use-after-free condition in the Windows MIDI Service Module on Windows 11 Version 24H2 (build 10.0.26100.0). Exploitation requires local access with authorized privileges and can lead to privilege escalation. The CVSS 3.1 vector indicates high complexity and privileges required, with no user interaction needed. Microsoft has published an official fix to address this issue.
Potential Impact
An authorized local attacker can exploit this vulnerability to elevate their privileges on the affected Windows 11 system, potentially gaining higher-level access than intended. This could allow the attacker to perform actions restricted to privileged users, impacting 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 by Microsoft as detailed in the vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56183 to remediate this vulnerability.
CVE-2026-56183: CWE-416: Use After Free in Microsoft Windows 11 Version 24H2
Description
Use after free in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.0high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-56183) involves a use-after-free condition in the Windows MIDI Service Module on Windows 11 Version 24H2 (build 10.0.26100.0). Exploitation requires local access with authorized privileges and can lead to privilege escalation. The CVSS 3.1 vector indicates high complexity and privileges required, with no user interaction needed. Microsoft has published an official fix to address this issue.
Potential Impact
An authorized local attacker can exploit this vulnerability to elevate their privileges on the affected Windows 11 system, potentially gaining higher-level access than intended. This could allow the attacker to perform actions restricted to privileged users, impacting 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 by Microsoft as detailed in the vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56183 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-19T13:54:04.005Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56183","vendor":"Microsoft"}]
Threat ID: 6a5676ba68715ace43f0ae96
Added to database: 07/14/2026, 17:49:46 UTC
Last enriched: 08/13/2026, 15:47:43 UTC
Last updated: 08/28/2026, 11:04:20 UTC
Views: 65
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