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CVE-2018-12205

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

6.8 MediumFix available

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.

What does this mean?
Severity
6.8 MediumCVSS 3.0, NVD
Exploit chance
0.28%EPSS, 20th percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
3.20190514.0ubuntu0.14.04.1intel-microcode +2 more

Description

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
90%50%10%1%

Affected products

Affected packages

Affected packages
PackageAffectedFixed
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

What each source reports

NVD Score used6.8

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.

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 ListNo score

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.

Record
CVE-2018-12205
Updated
2026-11-02
EUVDEUVD-2018-4183No score

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.

Record
EUVD-2018-4183
Updated
2026-11-03
GitHub AdvisoriesGHSA-9x39-g9g5-p55p6.8

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

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.

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-2018-122056.8

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.

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

History

History
RecordedChangedSources
facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

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

References

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