CVE-2026-42904
Windows TCP/IP Elevation of Privilege vulnerability
MSRC advisory June 9, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-42904
- Affected products
- Windows TCP/IP Elevation of Privilege · Microsoft Windows TCP/IP Elevation of Privilege · Microsoft
What happened
Heap-based buffer overflow in Windows TCP/IP allows an unauthorized attacker to elevate privileges over an adjacent network.
What it means for your business
Windows TCP/IP Elevation of Privilege vulnerability (CVE-2026-42904) was added to Microsoft’s security update guidance. Heap-based buffer overflow in Windows TCP/IP allows an unauthorized attacker to elevate privileges over an adjacent network. If you need help checking exposure, call (864) 335-9223.
Sources
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