CVE-2026-21248

CVSS Score & Metrics

Base Score

7.3 / 10

Vector String

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

Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally.

Published Date

February 10, 2026

Last Modified

February 11, 2026

CWE ID

CWE-122

Source

NVD

Vendor

microsoft

Product

windows_10_1607