Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
Low
Attack Vector
Local
0

CVE-2023-20555

Disclosure Date: August 08, 2023 •
CVE-2023-20555 CVSS v3 Base Score: 7.8
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

Insufficient input validation in
CpmDisplayFeatureSmm may allow an attacker to corrupt SMM memory by overwriting
an arbitrary bit in an attacker-controlled pointer potentially leading to
arbitrary code execution in SMM.

Add Assessment

No one has assessed this topic. Be the first to add your voice to the community.

CVSS V3 Severity and Metrics
Base Score:
7.8 High
Impact Score:
5.9
Exploitability Score:
1.8
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High

General Information

Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
Ryzen™ 3000 Series Desktop Processors “Matisse” AM4 not down converted
Ryzen™ 5000 Series Desktop Processors “Vermeer” AM4 not down converted
Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics “Cezanne” AM4 not down converted
Ryzen™ 7000 Series Processors “Raphael” not down converted
Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics “Picasso” not down converted
Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics “Renoir” FP5 not down converted
Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Dali”/”Dali” FP5 not down converted
Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Pollock” not down converted
Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics “Picasso” not down converted
Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics “Renoir” FP6 not down converted
Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Lucienne” not down converted
Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Cezanne” not down converted
Ryzen™ 6000 Series Mobile Processors "Rembrandt" not down converted
Ryzen™ 7030 Series Mobile Processors “Barcelo” not down converted
Ryzen™ 7020 Series Mobile Processors “Mendocino” not down converted
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown

Vendors

Products

Additional Info

Authenticated
Unknown
Exploitable
Unknown
Reliability
Unknown
Stability
Unknown
Available Mitigations
Unknown
Shelf Life
Unknown
Userbase/Installbase
Unknown
Patch Effectiveness
Unknown
Technical Analysis