CVE-2026-71337: CWE-121: Stack-based Buffer Overflow in Microsoft Windows 10 Version 21H2
CVE-2026-71337 is a stack-based buffer overflow vulnerability in the Windows Storage Management Provider on Microsoft Windows 10 Version 21H2. This flaw allows an authorized local attacker to elevate privileges. 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 is a stack-based buffer overflow (CWE-121) in the Windows Storage Management Provider component of Windows 10 Version 21H2 (build 10.0.19044.0). It enables an attacker with local authorized access to escalate privileges on the affected system. The vulnerability has been assigned CVE-2026-71337 and has a CVSS 3.1 base score of 7.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has released an official patch to remediate this issue.
Potential Impact
An authorized local attacker can exploit this stack-based buffer overflow to elevate privileges, potentially gaining higher-level access than intended. The vulnerability impacts confidentiality, integrity, and availability of the affected system. There are no known exploits in the wild at the time of publication.
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-2026-71337 to remediate this vulnerability.
CVE-2026-71337: CWE-121: Stack-based Buffer Overflow in Microsoft Windows 10 Version 21H2
Description
CVE-2026-71337 is a stack-based buffer overflow vulnerability in the Windows Storage Management Provider on Microsoft Windows 10 Version 21H2. This flaw allows an authorized local attacker to elevate privileges. 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
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability is a stack-based buffer overflow (CWE-121) in the Windows Storage Management Provider component of Windows 10 Version 21H2 (build 10.0.19044.0). It enables an attacker with local authorized access to escalate privileges on the affected system. The vulnerability has been assigned CVE-2026-71337 and has a CVSS 3.1 base score of 7.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has released an official patch to remediate this issue.
Potential Impact
An authorized local attacker can exploit this stack-based buffer overflow to elevate privileges, potentially gaining higher-level access than intended. The vulnerability impacts confidentiality, integrity, and availability of the affected system. There are no known exploits in the wild at the time of publication.
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-2026-71337 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-05T18:41:50.334Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-71337","vendor":"Microsoft"}]
Threat ID: 6aa04540acd9273b49fa9c37
Added to database: 09/08/2026, 17:26:24 UTC
Last enriched: 09/09/2026, 00:08:31 UTC
Last updated: 09/09/2026, 00:08:31 UTC
Views: 2
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