CVE-2026-80075: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 21H2
CVE-2026-80075 is a heap-based buffer overflow vulnerability in Windows Work Folders on Microsoft Windows 10 Version 21H2. It allows an authorized local attacker to elevate privileges. The vulnerability has a high severity score of 7.8 and has an official fix available from Microsoft.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-80075) involves a heap-based buffer overflow in the Windows Work Folders component of Microsoft Windows 10 Version 21H2 (build 10.0.19044.0). An attacker with local authorized access can exploit this flaw to elevate their privileges on the affected system. The CVSS v3.1 base score is 7.8, indicating high severity, with impacts on confidentiality, integrity, and availability. Microsoft has released an official fix for this vulnerability as documented in their security update guide.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges, potentially gaining higher-level access to the system. This can compromise system confidentiality, integrity, and availability as indicated by the CVSS metrics.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. Users and administrators should apply the security update provided by Microsoft for Windows 10 Version 21H2 (build 10.0.19044.0) as soon as possible to remediate this issue.
CVE-2026-80075: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 21H2
Description
CVE-2026-80075 is a heap-based buffer overflow vulnerability in Windows Work Folders on Microsoft Windows 10 Version 21H2. It allows an authorized local attacker to elevate privileges. The vulnerability has a high severity score of 7.8 and has an official fix available from Microsoft.
CVSS v3.1
Score 7.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-80075) involves a heap-based buffer overflow in the Windows Work Folders component of Microsoft Windows 10 Version 21H2 (build 10.0.19044.0). An attacker with local authorized access can exploit this flaw to elevate their privileges on the affected system. The CVSS v3.1 base score is 7.8, indicating high severity, with impacts on confidentiality, integrity, and availability. Microsoft has released an official fix for this vulnerability as documented in their security update guide.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges, potentially gaining higher-level access to the system. This can compromise system confidentiality, integrity, and availability as indicated by the CVSS metrics.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. Users and administrators should apply the security update provided by Microsoft for Windows 10 Version 21H2 (build 10.0.19044.0) as soon as possible to remediate this issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-25T18:37:59.828Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-80075","vendor":"Microsoft"}]
Threat ID: 6aa04566acd9273b49faa2d5
Added to database: 09/08/2026, 17:27:02 UTC
Last enriched: 09/08/2026, 19:07:35 UTC
Last updated: 09/08/2026, 19:07:35 UTC
Views: 2
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