CVE-2026-62800: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1607
Heap-based buffer overflow in Windows SMB Server allows an authorized attacker to execute code over a network.
AI Analysis
Technical Summary
This vulnerability involves a heap-based buffer overflow in the Windows SMB Server on Windows 10 Version 1607 (build 10.0.14393.0). An attacker with authorized network access can exploit this flaw to execute arbitrary code remotely. The vulnerability is tracked as CWE-122 and has a CVSS 3.1 base score of 8.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to remediate this issue.
Potential Impact
Successful exploitation of this vulnerability could allow an authorized attacker to execute arbitrary code remotely on the affected Windows 10 Version 1607 system via the SMB Server. This can lead to full system compromise, including complete control over the affected machine, resulting in high confidentiality, integrity, and availability impact.
Mitigation Recommendations
An official fix is available from Microsoft. It is strongly recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62800 to remediate this vulnerability. No additional mitigation steps are indicated by the vendor.
CVE-2026-62800: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1607
Description
Heap-based buffer overflow in Windows SMB Server allows an authorized attacker to execute code over a network.
CVSS v3.1
Score 8.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a heap-based buffer overflow in the Windows SMB Server on Windows 10 Version 1607 (build 10.0.14393.0). An attacker with authorized network access can exploit this flaw to execute arbitrary code remotely. The vulnerability is tracked as CWE-122 and has a CVSS 3.1 base score of 8.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to remediate this issue.
Potential Impact
Successful exploitation of this vulnerability could allow an authorized attacker to execute arbitrary code remotely on the affected Windows 10 Version 1607 system via the SMB Server. This can lead to full system compromise, including complete control over the affected machine, resulting in high confidentiality, integrity, and availability impact.
Mitigation Recommendations
An official fix is available from Microsoft. It is strongly recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62800 to remediate this vulnerability. No additional mitigation steps are indicated by the vendor.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-14T21:08:07.965Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62800","vendor":"Microsoft"}]
Threat ID: 6a7b5818bf8831d53915600c
Added to database: 08/11/2026, 17:12:56 UTC
Last enriched: 08/11/2026, 21:27:57 UTC
Last updated: 08/12/2026, 02:41:19 UTC
Views: 4
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