CVE-2021-42311

PoC —

CVSS 3.1

10.0 critical

EPSS

4%p90

Published

Dec 15, 2021 (Dec 15, 2021)

Modified

Jun 17, 2026

Description

Microsoft Defender for IoT Remote Code Execution Vulnerability

Vendors: microsoft
Products: defender for iot
Weakness: CWE-89
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (4.0%)

In the news1 stories

Microsoft December 2021 Patch Tuesday fixes an actively exploited zero

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