CVE-2026-49797: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1607
Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally.
AI Analysis
Technical Summary
This vulnerability involves a heap-based buffer overflow in the Windows NTFS driver on Windows 10 Version 1607 (build 10.0.14393.0). Exploitation requires local access and user interaction. Successful exploitation could lead to arbitrary code execution with high impact on confidentiality, integrity, and availability. Microsoft has published an official fix to remediate this vulnerability.
Potential Impact
An attacker with local access and the ability to trick a user into interaction could execute arbitrary code on the vulnerable system. This could lead to full compromise of the affected Windows 10 Version 1607 system, impacting confidentiality, integrity, and availability.
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-2026-49797 to remediate this vulnerability.
CVE-2026-49797: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1607
Description
Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally.
CVSS v3.1
Score 7.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a heap-based buffer overflow in the Windows NTFS driver on Windows 10 Version 1607 (build 10.0.14393.0). Exploitation requires local access and user interaction. Successful exploitation could lead to arbitrary code execution with high impact on confidentiality, integrity, and availability. Microsoft has published an official fix to remediate this vulnerability.
Potential Impact
An attacker with local access and the ability to trick a user into interaction could execute arbitrary code on the vulnerable system. This could lead to full compromise of the affected Windows 10 Version 1607 system, impacting confidentiality, integrity, and availability.
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-2026-49797 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-01T17:02:37.208Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49797","vendor":"Microsoft"}]
Threat ID: 6a566f6f68715ace43e6b58e
Added to database: 07/14/2026, 17:18:39 UTC
Last enriched: 08/13/2026, 14:24:53 UTC
Last updated: 08/28/2026, 11:04:20 UTC
Views: 67
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