CVE-2026-40415

Description

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

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Produits concernés

• Microsoft Windows 10 Version 1809
• Microsoft Windows 10 Version 21H2
• Microsoft Windows 10 Version 22H2
• Microsoft Windows 11 Version 23H2
• Microsoft Windows 11 Version 24H2
• Microsoft Windows 11 Version 25H2
• Microsoft Windows 11 version 26H1
• Microsoft Windows Server 2019
• Microsoft Windows Server 2019 (Server Core installation)
• Microsoft Windows Server 2022
• Microsoft Windows Server 2022, 23H2 Edition (Server Core installation)
• Microsoft Windows Server 2025
• Microsoft Windows Server 2025 (Server Core installation)
• Microsoft windows 10 1809
• Microsoft windows 10 21h2
• Microsoft windows 10 22h2
• Microsoft windows 11 23h2
• Microsoft windows 11 24h2
• Microsoft windows 11 25h2
• Microsoft windows 11 26h1
• Microsoft windows server 2022 23h2

Scores CVSS

Faiblesses (CWE)

• CWE-416

Références

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40415 Vendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories