CVE-2026-47652: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 11 version 23H2
Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-47652) involves a heap-based buffer overflow in the Windows Hyper-V component of Windows 11 version 23H2 (build 10.0.22631.0). An attacker with authorized local access and high privileges can exploit this flaw to execute arbitrary code on the affected system. The vulnerability has been assigned a CVSS v3.1 base score of 8.2, indicating high impact on confidentiality, integrity, and availability. Microsoft has published an official fix to address this issue.
Potential Impact
Successful exploitation allows an authorized attacker with high privileges to execute arbitrary code locally, potentially leading to full system compromise including complete control over confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
An official fix is available from Microsoft. It is recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47652 to remediate this vulnerability.
CVE-2026-47652: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 11 version 23H2
Description
Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally.
CVSS v3.1
Score 8.2high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-47652) involves a heap-based buffer overflow in the Windows Hyper-V component of Windows 11 version 23H2 (build 10.0.22631.0). An attacker with authorized local access and high privileges can exploit this flaw to execute arbitrary code on the affected system. The vulnerability has been assigned a CVSS v3.1 base score of 8.2, indicating high impact on confidentiality, integrity, and availability. Microsoft has published an official fix to address this issue.
Potential Impact
Successful exploitation allows an authorized attacker with high privileges to execute arbitrary code locally, potentially leading to full system compromise including complete control over confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
An official fix is available from Microsoft. It is recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47652 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-19T20:12:27.071Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47652","vendor":"Microsoft"}]
Threat ID: 6a284cf28dd33fbd85665083
Added to database: 06/09/2026, 17:27:14 UTC
Last enriched: 07/29/2026, 22:06:58 UTC
Last updated: 07/31/2026, 21:26:45 UTC
Views: 78
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