CVE-2026-69829: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1607
CVE-2026-69829 is a critical heap-based buffer overflow vulnerability in the Windows Shell component of Microsoft Windows 10 Version 1607. This flaw allows an unauthorized attacker to execute arbitrary code remotely over a network without user interaction or privileges. The vulnerability has a high CVSS score of 9.8, indicating severe impact on confidentiality, integrity, and availability. An official fix is available from Microsoft to address this issue.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-69829) is a heap-based buffer overflow in the Windows Shell of Windows 10 Version 1607 (build 10.0.14393.0). It enables remote code execution by an unauthenticated attacker over the network, with no user interaction required. The flaw is classified under CWE-122 (Heap-based Buffer Overflow). Microsoft has published an official fix for this vulnerability, as documented in their security update guide.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary code remotely, potentially leading to full system compromise including complete loss of confidentiality, integrity, and availability. The vulnerability requires no privileges and no user interaction, making it highly dangerous if unpatched.
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-2026-69829 to remediate this vulnerability.
CVE-2026-69829: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1607
Description
CVE-2026-69829 is a critical heap-based buffer overflow vulnerability in the Windows Shell component of Microsoft Windows 10 Version 1607. This flaw allows an unauthorized attacker to execute arbitrary code remotely over a network without user interaction or privileges. The vulnerability has a high CVSS score of 9.8, indicating severe impact on confidentiality, integrity, and availability. An official fix is available from Microsoft to address this issue.
CVSS v3.1
Score 9.8critical
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-69829) is a heap-based buffer overflow in the Windows Shell of Windows 10 Version 1607 (build 10.0.14393.0). It enables remote code execution by an unauthenticated attacker over the network, with no user interaction required. The flaw is classified under CWE-122 (Heap-based Buffer Overflow). Microsoft has published an official fix for this vulnerability, as documented in their security update guide.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary code remotely, potentially leading to full system compromise including complete loss of confidentiality, integrity, and availability. The vulnerability requires no privileges and no user interaction, making it highly dangerous if unpatched.
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-2026-69829 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-03T22:50:31.852Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69829","vendor":"Microsoft"}]
Threat ID: 6aa04531acd9273b49fa9a25
Added to database: 09/08/2026, 17:26:09 UTC
Last enriched: 09/09/2026, 01:07:27 UTC
Last updated: 09/09/2026, 01:07:27 UTC
Views: 2
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