CVE-2026-35421: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1607
Heap-based buffer overflow in Windows GDI allows an unauthorized attacker to execute code locally.
AI Analysis
Technical Summary
This vulnerability involves a heap-based buffer overflow in the Windows Graphics Device Interface (GDI) on Windows 10 Version 1607 (build 10.0.14393.0). An attacker with local access and the ability to trick a user into interacting with a malicious payload could execute arbitrary code with elevated privileges. The vulnerability is classified under CWE-122 (Heap-based Buffer Overflow) 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 allow an attacker to execute arbitrary code locally, potentially leading to full system compromise. The impact affects confidentiality, integrity, and availability of the affected system. No known exploits are currently reported in the wild.
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-2026-35421 to remediate this vulnerability. No additional mitigation steps are specified by the vendor.
CVE-2026-35421: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1607
Description
Heap-based buffer overflow in Windows GDI allows an unauthorized attacker to execute code locally.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a heap-based buffer overflow in the Windows Graphics Device Interface (GDI) on Windows 10 Version 1607 (build 10.0.14393.0). An attacker with local access and the ability to trick a user into interacting with a malicious payload could execute arbitrary code with elevated privileges. The vulnerability is classified under CWE-122 (Heap-based Buffer Overflow) 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 allow an attacker to execute arbitrary code locally, potentially leading to full system compromise. The impact affects confidentiality, integrity, and availability of the affected system. No known exploits are currently reported in the wild.
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-2026-35421 to remediate this vulnerability. No additional mitigation steps are specified by the vendor.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-04-02T19:21:11.804Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-35421","vendor":"Microsoft"}]
Threat ID: 6a036547cbff5d861008c645
Added to database: 5/12/2026, 5:37:11 PM
Last enriched: 5/12/2026, 7:07:07 PM
Last updated: 5/13/2026, 4:52:20 AM
Views: 2
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