CVE-2020-12336

Name: CVE-2020-12336
Creator: NVD / NIST
Published: 2020-11-12T19:15:14.003+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.32%

Last modified Jun 17, 2026

CVE-2020-12336 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Insecure default variable initialization in firmware for some Intel(R) NUCs may allow an authenticated user to potentially enable escalation of privilege via local access.. EPSS estimates a 0.32% chance of exploitation in the next 30 days.

Description

Insecure default variable initialization in firmware for some Intel(R) NUCs may allow an authenticated user to potentially enable escalation of privilege via local access.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.32%

23.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-1188

Affected Software

Vendor	Product	Versions
Intel	Nuc 8 Mainstream-G Kit Nuc8i5inh Firmware	inwhl357.0036
Intel	Nuc 8 Mainstream-G Kit Nuc8i7inh Firmware	inwhl357.0036
Intel	Nuc 8 Mainstream-G Mini Pc Nuc8i5inh Firmware	inwhl357.0036
Intel	Nuc 8 Mainstream-G Mini Pc Nuc8i7inh Firmware	inwhl357.0036
Intel	Nuc 8 Pro Board Nuc8i3pnb Firmware	pnwhl357.0037
Intel	Nuc 8 Pro Kit Nuc8i3pnh Firmware	pnwhl357.0037
Intel	Nuc 8 Pro Kit Nuc8i3pnk Firmware	pnwhl357.0037
Intel	Nuc 8 Pro Mini Pc Nuc8i3pnk Firmware	pnwhl357.0037
Intel	Nuc 8 Rugged Kit Nuc8cchkr Firmware	chaplcel.0049
Intel	Nuc 9 Pro Kit Nuc9v7qnx Firmware	qncflx70.34
Intel	Nuc 9 Pro Kit Nuc9vxqnx Firmware	qncflx70.34
Intel	Nuc Board H27002-400 Firmware	tybyt10h.86a
Intel	Nuc Board H27002-401 Firmware	tybyt10h.86a
Intel	Nuc Board H27002-402 Firmware	tybyt10h.86a
Intel	Nuc Board H27002-404 Firmware	tybyt10h.86a
Intel	Nuc Board H27002-500 Firmware	tybyt20h.86a
Intel	Nuc Board Nuc8cchb Firmware	chaplcel.0049
Intel	Nuc Kit H26998-401 Firmware	tybyt10h.86a
Intel	Nuc Kit H26998-402 Firmware	tybyt10h.86a
Intel	Nuc Kit H26998-403 Firmware	tybyt10h.86a
Intel	Nuc Kit H26998-404 Firmware	tybyt10h.86a
Intel	Nuc Kit H26998-405 Firmware	tybyt10h.86a
Intel	Nuc Kit H26998-500 Firmware	tybyt20h.86a

References

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00414Vendor Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00414Vendor Advisory

Timeline

Published: Nov 12, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-12336?

Insecure default variable initialization in firmware for some Intel(R) NUCs may allow an authenticated user to potentially enable escalation of privilege via local access.

How severe is CVE-2020-12336?

CVE-2020-12336 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.32% probability of exploitation in the next 30 days.

How do I fix CVE-2020-12336?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-12336?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST