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CVE-2026-42904
CRITICAL
CVSS: 9.6
Published: 2026-06-09
Modified: 2026-07-23
Description
Heap-based buffer overflow in Windows TCP/IP allows an unauthorized attacker to elevate privileges over an adjacent network.
Affected Platforms
Microsoft Windows 10 21H2Microsoft Windows 11 24H2Microsoft Windows 10 22H2Microsoft Windows Server 2025Microsoft Windows 11 26H1Microsoft Windows Server 2022Microsoft Windows 11 25H2Microsoft Windows 11 23H2