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Case File

CVE-2017-0021

CRITICAL · CVSS 9 EPSS 1.71%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2017-03-17 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.0. It affects Microsoft, Windows.

CVE
CVE-2017-0021
Severity
CRITICAL
CVSS
9
EPSS
1.71%
Microsoft Windows

Original NVD Description

Hyper-V in Microsoft Windows 10 1607 and Windows Server 2016 does not properly validate vSMB packet data, which allows attackers to execute arbitrary code on a target OS, aka "Hyper-V System Data Structure Vulnerability." This vulnerability is different from that described in CVE-2017-0095.