What is CVE-2026-40415?

CVE-2026-40415 is a security advisory published by Microsoft Security Response Center (MSRC) with Remote Code Execution severity. Windows TCP/IP Remote Code Execution Vulnerability

Which CVE IDs does CVE-2026-40415 cover?

CVE-2026-40415 covers the following CVE IDs: CVE-2026-40415. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-40415?

CVE-2026-40415 has a CVSS v3 base score of 8.1, published by Microsoft Security Response Center (MSRC).

CVE-2026-40415Remote Code ExecutionCVSS 8.1

Windows TCP/IP Remote Code Execution Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

May 22, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-40415 →

📋 Description

<p>Use after free in Windows TCP/IP allows an unauthorized attacker to execute code over a network.</p>