CVE-2026-41096: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 11 version 23H2
Heap-based buffer overflow in Microsoft Windows DNS allows an unauthorized attacker to execute code over a network.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-41096) is a heap-based buffer overflow in the DNS functionality of Microsoft Windows 11 version 23H2 (build 10.0.22631.0). It enables remote code execution by an unauthenticated attacker over the network. The vulnerability is classified under CWE-122 (Heap-based Buffer Overflow). Microsoft has published an official fix to remediate this critical security flaw.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary code remotely on affected Windows 11 23H2 systems, potentially leading to full system compromise including complete confidentiality, integrity, and availability loss. No known exploits are reported in the wild at this time.
Mitigation Recommendations
An official security update from Microsoft is available and should be applied immediately to affected systems. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41096 for patch details and deployment guidance.
CVE-2026-41096: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 11 version 23H2
Description
Heap-based buffer overflow in Microsoft Windows DNS allows an unauthorized attacker to execute code over a network.
CVSS v3.1
Score 9.8critical
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-41096) is a heap-based buffer overflow in the DNS functionality of Microsoft Windows 11 version 23H2 (build 10.0.22631.0). It enables remote code execution by an unauthenticated attacker over the network. The vulnerability is classified under CWE-122 (Heap-based Buffer Overflow). Microsoft has published an official fix to remediate this critical security flaw.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary code remotely on affected Windows 11 23H2 systems, potentially leading to full system compromise including complete confidentiality, integrity, and availability loss. No known exploits are reported in the wild at this time.
Mitigation Recommendations
An official security update from Microsoft is available and should be applied immediately to affected systems. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41096 for patch details and deployment guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-04-16T19:12:36.195Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41096","vendor":"Microsoft"}]
Threat ID: 6a03655ecbff5d861008cb8a
Added to database: 05/12/2026, 17:37:34 UTC
Last enriched: 06/19/2026, 17:41:43 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 95
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