CVE-2018-12203

Denial of service vulnerability in Platform Sample/ Silicon Reference firmware for 8th Generation...

6.7 MediumFix available

Denial of service vulnerability in Platform Sample/ Silicon Reference firmware for 8th Generation Intel Core Processor, 7th Generation Intel Core Processor may allow privileged user to potentially execute arbitrary code via local access.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: High
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.45%Down 1.4 points since Apr 14, 2021

What each source reports

NVD Score used 6.7

Record: CVE-2018-12203
CVSS 3.0: 6.7 MediumCVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 7.2 HighAV:L/AC:L/Au:N/C:C/I:C/A:C
Updated: 2026-11-02

CVE List No score

Record: CVE-2018-12203
Updated: 2026-11-02

EUVDEUVD-2018-4181 No score

Record: EUVD-2018-4181
Updated: 2026-11-03

GitHub AdvisoriesGHSA-46wx-mvg2-p27m 6.7

Denial of service vulnerability in Platform Sample/ Silicon Reference firmware for 8th Generation...

Record: GHSA-46wx-mvg2-p27m
CVSS 3.0: 6.7 MediumCVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2018-12203 6.7

Record: UBUNTU-CVE-2018-12203
CVSS 3.0: 6.7 MediumCVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`intel-microcode` Ubuntu:14.04:LTS	before 3.20190514.0ubuntu0.14.04.1, plus listed versions 1.20130906.1ubuntu21.20130906.1ubuntu32.20140122.12.20140430.1ubuntu12.20140624-t-1ubuntu2 Show 6 moreShow less 3.20180108.0~ubuntu14.04.23.20180108.0+really20170707ubuntu14.04.13.20180312.0~ubuntu14.04.13.20180425.1~ubuntu0.14.04.13.20180425.1~ubuntu0.14.04.23.20180807a.0ubuntu0.14.04.1	3.20190514.0ubuntu0.14.04.1
`intel-microcode` Ubuntu:16.04:LTS	before 3.20190514.0ubuntu0.16.04.1, plus listed versions 3.20150121.13.20151106.13.20170707.1~ubuntu16.04.03.20180108.0~ubuntu16.04.23.20180108.0+really20170707ubuntu16.04.1 Show 4 moreShow less 3.20180312.0~ubuntu16.04.13.20180425.1~ubuntu0.16.04.13.20180425.1~ubuntu0.16.04.23.20180807a.0ubuntu0.16.04.1	3.20190514.0ubuntu0.16.04.1
`intel-microcode` Ubuntu:18.04:LTS	before 3.20190514.0ubuntu0.18.04.2, plus listed versions 3.20170707.13.20171117.13.20180108.13.20180108.1+really20171117.13.20180312.0~ubuntu18.04.13.20180425.1~ubuntu0.18.04.13.20180425.1~ubuntu0.18.04.23.20180807a.0ubuntu0.18.04.1	3.20190514.0ubuntu0.18.04.2

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-12203 is a medium vulnerability (CVSS 6.7) in Intel Silicon Reference Firmware, published March 14, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.45%, the 39th percentile. Fixed in intel-microcode 3.20190514.0ubuntu0.14.04.1.