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CVE PROGRAM SOURCE RECORD9.6 Critical

CVE-2026-42904

Windows TCP/IP Elevation of Privilege Vulnerability

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
microsoft

Description

Heap-based buffer overflow in Windows TCP/IP allows an unauthorized attacker to elevate privileges over an adjacent network.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Microsoft Windows 10 Version 21H2

  • 10.0.19044.0 to < 10.0.19044.7417affected

Microsoft Windows 10 Version 22H2

  • 10.0.19045.0 to < 10.0.19045.7417affected

Microsoft Windows 11 version 23H2

  • 10.0.22631.0 to < 10.0.22631.7219affected

Microsoft Windows 11 Version 23H2

  • 10.0.22631.0 to < 10.0.22631.7219affected

Microsoft Windows 11 Version 24H2

  • 10.0.26100.0 to < 10.0.26100.8655affected

Microsoft Windows 11 Version 25H2

  • 10.0.26200.0 to < 10.0.26200.8655affected

Microsoft Windows 11 version 26H1

  • 10.0.28000.0 to < 10.0.28000.2269affected

Microsoft Windows Server 2022

  • 10.0.20348.0 to < 10.0.20348.5256affected

Microsoft Windows Server 2025

  • 10.0.26100.0 to < 10.0.26100.32995affected

Microsoft Windows Server 2025 (Server Core installation)

  • 10.0.26100.0 to < 10.0.26100.32995affected

References