CVE-2026-49797: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1607
CVE-2026-49797 is a heap-based buffer overflow vulnerability in the NTFS component of Microsoft Windows 10 Version 1607. This flaw allows an unauthorized attacker to execute code locally on the affected system. 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 involves a heap-based buffer overflow in the Windows NTFS driver on Windows 10 Version 1607 (build 10.0.14393.0). Exploitation could allow a local attacker to execute arbitrary code with elevated privileges. The vulnerability is tracked as CWE-122 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
Successful exploitation of this vulnerability could lead to local code execution with high impact on system confidentiality, integrity, and availability. This means an attacker could potentially run arbitrary code on the affected system, leading to full compromise of the affected Windows 10 Version 1607 device.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft as detailed in the vendor 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
CVE-2026-49797 is a heap-based buffer overflow vulnerability in the NTFS component of Microsoft Windows 10 Version 1607. This flaw allows an unauthorized attacker to execute code locally on the affected system. 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 involves a heap-based buffer overflow in the Windows NTFS driver on Windows 10 Version 1607 (build 10.0.14393.0). Exploitation could allow a local attacker to execute arbitrary code with elevated privileges. The vulnerability is tracked as CWE-122 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
Successful exploitation of this vulnerability could lead to local code execution with high impact on system confidentiality, integrity, and availability. This means an attacker could potentially run arbitrary code on the affected system, leading to full compromise of the affected Windows 10 Version 1607 device.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft as detailed in the vendor 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: 07/15/2026, 01:34:41 UTC
Last updated: 07/15/2026, 01:34:41 UTC
Views: 2
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