CVE-2026-40399

HIGH CVSS 7.8 View on NVD ↗

Stack-based buffer overflow in Windows TCP/IP allows an authorized attacker to elevate privileges locally.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Published: May 12, 2026 18:17 UTC Modified: May 13, 2026 15:34 UTC