CVE-2018-12205

Improper certificate validation in Platform Sample/ Silicon Reference firmware for 8th Generation...

6.8 MediumFix available

Improper certificate validation in Platform Sample/ Silicon Reference firmware for 8th Generation Intel(R) Core(tm) Processor, 7th Generation Intel(R) Core(tm) Processor may allow an unauthenticated user to potentially enable an escalation of privilege via physical access.

Attack profile

How easy it is to exploit

Attack vector: Physical
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.28%Down 0.6 points since Apr 14, 2021

What each source reports

NVD Score used 6.8

Record: CVE-2018-12205
CVSS 3.0: 6.8 MediumCVSS:3.0/AV:P/AC:L/PR:N/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
Weakness: CWE-295
Updated: 2026-11-02

CVE List No score

Record: CVE-2018-12205
Updated: 2026-11-02

EUVDEUVD-2018-4183 No score

Record: EUVD-2018-4183
Updated: 2026-11-03

GitHub AdvisoriesGHSA-9x39-g9g5-p55p 6.8

Improper certificate validation in Platform Sample/ Silicon Reference firmware for 8th Generation...

Record: GHSA-9x39-g9g5-p55p
CVSS 3.0: 6.8 MediumCVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-295
Updated: 2026-11-02

OSVUBUNTU-CVE-2018-12205 6.8

Record: UBUNTU-CVE-2018-12205
CVSS 3.0: 6.8 MediumCVSS:3.0/AV:P/AC:L/PR:N/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-2018-12205 is a medium vulnerability (CVSS 6.8) 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 0.28%, the 20th percentile. Fixed in intel-microcode 3.20190514.0ubuntu0.14.04.1.