CVE-2026-40414: CWE-476: NULL Pointer Dereference in Microsoft Windows 10 Version 1607
Null pointer dereference in Windows TCP/IP allows an unauthorized attacker to deny service over an adjacent network.
AI Analysis
Technical Summary
This vulnerability (CWE-476: NULL Pointer Dereference) affects the TCP/IP implementation in Windows 10 Version 1607 (build 10.0.14393.0). An attacker without privileges or user interaction can exploit this flaw remotely over an adjacent network to trigger a null pointer dereference, causing the system to crash or become unresponsive, resulting in denial of service. The CVSS v3.1 base score is 7.4, reflecting high impact on availability with no impact on confidentiality or integrity. Microsoft has released an official patch to remediate this vulnerability.
Potential Impact
Successful exploitation leads to denial of service by crashing or destabilizing the affected Windows 10 system's TCP/IP stack. There is no direct impact on data confidentiality or integrity. The attack requires network adjacency but no privileges or user interaction.
Mitigation Recommendations
An official fix is available from Microsoft and should be applied promptly to remediate this vulnerability. Refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40414 for patch details and installation instructions.
CVE-2026-40414: CWE-476: NULL Pointer Dereference in Microsoft Windows 10 Version 1607
Description
Null pointer dereference in Windows TCP/IP allows an unauthorized attacker to deny service over an adjacent network.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-476: NULL Pointer Dereference) affects the TCP/IP implementation in Windows 10 Version 1607 (build 10.0.14393.0). An attacker without privileges or user interaction can exploit this flaw remotely over an adjacent network to trigger a null pointer dereference, causing the system to crash or become unresponsive, resulting in denial of service. The CVSS v3.1 base score is 7.4, reflecting high impact on availability with no impact on confidentiality or integrity. Microsoft has released an official patch to remediate this vulnerability.
Potential Impact
Successful exploitation leads to denial of service by crashing or destabilizing the affected Windows 10 system's TCP/IP stack. There is no direct impact on data confidentiality or integrity. The attack requires network adjacency but no privileges or user interaction.
Mitigation Recommendations
An official fix is available from Microsoft and should be applied promptly to remediate this vulnerability. Refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40414 for patch details and installation instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-04-13T00:27:50.798Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40414","vendor":"Microsoft"}]
Threat ID: 6a036557cbff5d861008c9cd
Added to database: 5/12/2026, 5:37:27 PM
Last enriched: 5/12/2026, 6:23:16 PM
Last updated: 5/13/2026, 4:51:25 AM
Views: 2
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