CVE-2026-42904

CVSS Score & Metrics

Base Score

9.6 / 10

Vector String

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

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

Published Date

June 09, 2026

Last Modified

June 11, 2026

CWE ID

CWE-122

Source

NVD

Vendor

microsoft

Product

windows_10_21h2