CVE-2026-47652: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 11 version 23H2
Out-of-bounds read in Windows Hyper-V allows an unauthorized attacker to execute code locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-47652) involves an out-of-bounds read in the Windows Hyper-V component of Windows 11 version 23H2 (build 10.0.22631.0). The flaw is classified as CWE-122 (heap-based buffer overflow) and can be exploited by an attacker with local high privileges to execute arbitrary code. The vulnerability has a CVSS v3.1 base score of 8.2, indicating high impact on confidentiality, integrity, and availability. Microsoft has published an official fix for this vulnerability, as detailed in their security update guide.
Potential Impact
Successful exploitation allows an attacker with high privileges on the local system to execute arbitrary code, potentially leading to full system compromise. The vulnerability affects confidentiality, integrity, and availability of the affected system. 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-2026-47652 to remediate this vulnerability.
CVE-2026-47652: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 11 version 23H2
Description
Out-of-bounds read in Windows Hyper-V allows an unauthorized attacker to execute code locally.
CVSS v3.1
Score 8.2high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-47652) involves an out-of-bounds read in the Windows Hyper-V component of Windows 11 version 23H2 (build 10.0.22631.0). The flaw is classified as CWE-122 (heap-based buffer overflow) and can be exploited by an attacker with local high privileges to execute arbitrary code. The vulnerability has a CVSS v3.1 base score of 8.2, indicating high impact on confidentiality, integrity, and availability. Microsoft has published an official fix for this vulnerability, as detailed in their security update guide.
Potential Impact
Successful exploitation allows an attacker with high privileges on the local system to execute arbitrary code, potentially leading to full system compromise. The vulnerability affects confidentiality, integrity, and availability of the affected system. 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-2026-47652 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: 6/9/2026, 5:27:14 PM
Last enriched: 6/9/2026, 5:55:55 PM
Last updated: 6/10/2026, 5:08:55 AM
Views: 2
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