CVE-2018-8934

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

22/03/2018

Last modified:

17/06/2026

Description

The Promontory chipset, as used in AMD Ryzen and Ryzen Pro platforms, has a backdoor in firmware, aka CHIMERA-FW.

Impact

Vector 3.x

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 9.00 CRITICAL
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

9.00

Severity 3.x

CRITICAL

Vector 2.0

AV:N/AC:M/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 9.30 HIGH
Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0

9.30

Severity 2.0

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:amd:ryzen_pro_firmware:-:::::::*
cpe:2.3:h:amd:ryzen_pro:-:::::::*
cpe:2.3:o:amd:ryzen_firmware:-:::::::*
cpe:2.3:h:amd:ryzen:-:::::::*

To consult the complete list of CPE names with products and versions, see this page

CPE	From	Up to
cpe:2.3:o:amd:ryzen_pro_firmware:-:::::::*
cpe:2.3:h:amd:ryzen_pro:-:::::::*
cpe:2.3:o:amd:ryzen_firmware:-:::::::*
cpe:2.3:h:amd:ryzen:-:::::::*

CVE-2018-8934

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools