CVE-2026-88105: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Description
CVE-2026-88105 is a high-severity use-after-free vulnerability in the Windows Broadcast DVR User Service affecting multiple Windows 10 versions. It allows an authorized local attacker to elevate privileges without user interaction. The vulnerability has an official fix available from Microsoft.
CVSS v3.1
Score 7.8high
Affected software
Microsoft
Windows 10 Version 1607
Microsoft
Windows 10 Version 1809
Microsoft
Windows 10 Version 21H2
Microsoft
Windows 10 Version 22H2
Microsoft
Windows 11 version 23H2
Microsoft
Windows 11 Version 23H2
Microsoft
Windows 11 Version 24H2
Microsoft
Windows 11 Version 25H2
Microsoft
Windows 11 version 26H1
Microsoft
Windows 11 Version 26H2
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CVE-2026-88105 and classified under CWE-416 (Use After Free), affects the Windows Broadcast DVR User Service in Windows 10 Version 1607 and later builds. An authorized local attacker can exploit this flaw to elevate privileges on the affected system. The CVSS 3.1 base score is 7.8, indicating high severity, with attack vector local, low attack complexity, and no user interaction required. Microsoft has issued an official fix for this vulnerability.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges, potentially gaining higher-level access to the affected system. This could lead to full system compromise depending on the privileges escalated. The vulnerability affects confidentiality, integrity, and availability with high impact.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security updates provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88105 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-09-09T21:51:51.954Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88105","vendor":"Microsoft"}]
Threat ID: 6ace85592cdf04f6569ff501
Added to database: 10/13/2026, 19:24:09 UTC
Last enriched: 10/14/2026, 02:03:42 UTC
Last updated: 10/14/2026, 02:03:42 UTC
Views: 3
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