CVE-2026-32221: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 11 Version 24H2
Heap-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-32221) involves a heap-based buffer overflow in the Microsoft Graphics Component within Windows 11 Version 24H2 (build 10.0.26100.0). Exploitation could allow an attacker with local access to execute arbitrary code with elevated privileges. The vulnerability is classified under CWE-122 (Heap-based Buffer Overflow). Microsoft has published an official fix to remediate this issue.
Potential Impact
Successful exploitation of this vulnerability could lead to local code execution with high impact on confidentiality, integrity, and availability of the affected system. This means an attacker could run arbitrary code, potentially leading to full system compromise.
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-2026-32221 to remediate this vulnerability.
CVE-2026-32221: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 11 Version 24H2
Description
Heap-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code locally.
CVSS v3.1
Score 8.4high
Affected software
Microsoft
Windows 11 Version 24H2
Microsoft
Windows 11 Version 25H2
Microsoft
Windows 11 version 26H1
Microsoft
Windows Server 2025
Microsoft
Windows Server 2025 (Server Core installation)
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-32221) involves a heap-based buffer overflow in the Microsoft Graphics Component within Windows 11 Version 24H2 (build 10.0.26100.0). Exploitation could allow an attacker with local access to execute arbitrary code with elevated privileges. The vulnerability is classified under CWE-122 (Heap-based Buffer Overflow). Microsoft has published an official fix to remediate this issue.
Potential Impact
Successful exploitation of this vulnerability could lead to local code execution with high impact on confidentiality, integrity, and availability of the affected system. This means an attacker could run arbitrary code, potentially leading to full system compromise.
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-2026-32221 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-03-11T01:49:58.662Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32221","vendor":"Microsoft"}]
Threat ID: 69de7a3882d89c981fd6cee7
Added to database: 04/14/2026, 17:32:40 UTC
Last enriched: 08/15/2026, 14:09:03 UTC
Last updated: 09/13/2026, 22:01:33 UTC
Views: 171
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