CVE-2026-33837: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1607
Heap-based buffer overflow in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-33837) involves a heap-based buffer overflow in the TCP/IP implementation of Microsoft Windows 10 Version 1607 (build 10.0.14393.0). The flaw can be exploited by an authorized local attacker to elevate privileges on the affected system. The vulnerability is classified under CWE-122 (Heap-based Buffer Overflow). Microsoft has released an official patch to address this issue.
Potential Impact
Successful exploitation of this vulnerability could allow an authorized local attacker to gain elevated privileges, potentially leading to full control over the affected system. The confidentiality, integrity, and availability of the system are all rated as high impact according to the CVSS vector.
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-2026-33837 to remediate this vulnerability.
CVE-2026-33837: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1607
Description
Heap-based buffer overflow in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-33837) involves a heap-based buffer overflow in the TCP/IP implementation of Microsoft Windows 10 Version 1607 (build 10.0.14393.0). The flaw can be exploited by an authorized local attacker to elevate privileges on the affected system. The vulnerability is classified under CWE-122 (Heap-based Buffer Overflow). Microsoft has released an official patch to address this issue.
Potential Impact
Successful exploitation of this vulnerability could allow an authorized local attacker to gain elevated privileges, potentially leading to full control over the affected system. The confidentiality, integrity, and availability of the system are all rated as high impact according to the CVSS vector.
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-2026-33837 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-03-24T00:52:01.353Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33837","vendor":"Microsoft"}]
Threat ID: 6a036539cbff5d861008c33a
Added to database: 05/12/2026, 17:36:57 UTC
Last enriched: 06/19/2026, 17:31:09 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 43
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