CVE-2026-33838: CWE-415: Double Free in Microsoft Windows 10 Version 1607
Double free in Windows Message Queuing allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-33838) is a double free condition in the Windows Message Queuing component of Microsoft Windows 10 Version 1607 (build 10.0.14393.0). The flaw enables a local attacker with authorized access to elevate their privileges on the affected system. The CVSS v3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability. Microsoft has published 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 can lead to full system compromise depending on the privileges gained. The vulnerability affects 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 for Windows 10 Version 1607 as detailed in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33838. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-33838: CWE-415: Double Free in Microsoft Windows 10 Version 1607
Description
Double free in Windows Message Queuing 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 (CVE-2026-33838) is a double free condition in the Windows Message Queuing component of Microsoft Windows 10 Version 1607 (build 10.0.14393.0). The flaw enables a local attacker with authorized access to elevate their privileges on the affected system. The CVSS v3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability. Microsoft has published 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 can lead to full system compromise depending on the privileges gained. The vulnerability affects 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 for Windows 10 Version 1607 as detailed in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33838. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-03-24T00:52:01.353Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33838","vendor":"Microsoft"}]
Threat ID: 6a036539cbff5d861008c33d
Added to database: 05/12/2026, 17:36:57 UTC
Last enriched: 06/19/2026, 17:31:15 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 78
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