CVE-2026-44811: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 11 version 26H1
CVE-2026-44811 is a heap-based buffer overflow vulnerability in the Windows DWM Core Library of Microsoft Windows 11 version 26H1 (build 10. 0. 28000. 0). It allows an authorized local attacker to elevate privileges by exploiting a use-after-free condition. The vulnerability has a high severity rating with a CVSS score of 7. 8. An official fix is available from Microsoft to address this issue.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-44811) involves a use-after-free condition in the Windows Desktop Window Manager (DWM) Core Library in Windows 11 version 26H1 (build 10.0.28000.0). Exploiting this heap-based buffer overflow can enable an authorized local attacker to elevate their 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 allows an authorized local attacker to elevate privileges, potentially gaining higher system rights. The CVSS 3.1 base score of 7.8 reflects high impact on confidentiality, integrity, and availability. There are no known exploits in the wild at the time of publication.
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-2026-44811 to remediate this vulnerability.
CVE-2026-44811: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 11 version 26H1
Description
CVE-2026-44811 is a heap-based buffer overflow vulnerability in the Windows DWM Core Library of Microsoft Windows 11 version 26H1 (build 10. 0. 28000. 0). It allows an authorized local attacker to elevate privileges by exploiting a use-after-free condition. The vulnerability has a high severity rating with a CVSS score of 7. 8. An official fix is available from Microsoft to address this issue.
CVSS v3.1
Score 7.8high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-44811) involves a use-after-free condition in the Windows Desktop Window Manager (DWM) Core Library in Windows 11 version 26H1 (build 10.0.28000.0). Exploiting this heap-based buffer overflow can enable an authorized local attacker to elevate their 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 allows an authorized local attacker to elevate privileges, potentially gaining higher system rights. The CVSS 3.1 base score of 7.8 reflects high impact on confidentiality, integrity, and availability. There are no known exploits in the wild at the time of publication.
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-2026-44811 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-07T20:07:18.271Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44811","vendor":"Microsoft"}]
Threat ID: 6a284cce8dd33fbd85664a15
Added to database: 6/9/2026, 5:26:38 PM
Last enriched: 6/9/2026, 10:41:54 PM
Last updated: 6/10/2026, 5:00:57 AM
Views: 2
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