CVE-2026-26156: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1607
Heap-based buffer overflow in Windows Hyper-V allows an unauthorized attacker to execute code locally.
AI Analysis
Technical Summary
This vulnerability is a heap-based buffer overflow in the Windows Hyper-V component of Windows 10 Version 1607. It enables an unauthorized attacker with local access to execute code, potentially leading to full system compromise. The CVSS vector indicates low attack complexity, no privileges required, but user interaction is needed. The vulnerability affects confidentiality, integrity, and availability with high impact. Microsoft has released an official fix to remediate this issue.
Potential Impact
Successful exploitation allows local attackers to execute arbitrary code on affected systems, potentially leading to full compromise of the system's confidentiality, integrity, and availability. There are no known exploits in the wild at this time.
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-2026-26156 to remediate this vulnerability.
CVE-2026-26156: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1607
Description
Heap-based buffer overflow in Windows Hyper-V allows an unauthorized attacker to execute code locally.
CVSS v3.1
Score 7.8high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability is a heap-based buffer overflow in the Windows Hyper-V component of Windows 10 Version 1607. It enables an unauthorized attacker with local access to execute code, potentially leading to full system compromise. The CVSS vector indicates low attack complexity, no privileges required, but user interaction is needed. The vulnerability affects confidentiality, integrity, and availability with high impact. Microsoft has released an official fix to remediate this issue.
Potential Impact
Successful exploitation allows local attackers to execute arbitrary code on affected systems, potentially leading to full compromise of the system's confidentiality, integrity, and availability. There are no known exploits in the wild at this time.
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-2026-26156 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-02-11T16:24:51.136Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26156","vendor":"Microsoft"}]
Threat ID: 69de7a1682d89c981fd6a639
Added to database: 4/14/2026, 5:32:06 PM
Last enriched: 5/19/2026, 10:33:55 AM
Last updated: 5/31/2026, 5:34:43 AM
Views: 80
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