AMD Ryzen Embedded V3000 SMM improper access control for volatile memory containing boot code

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability was found in AMD EPYC 7003 Processors, EPYC 9004 Processors, Instinct MI300A, Ryzen 3000 Desktop Processors, Ryzen 5000 Desktop Processors, Ryzen 5000 Desktop Processor with Radeon Graphics, Ryzen 7000 Desktop Processors, Ryzen 4000 Desktop Processor with Radeon Graphics, Ryzen 8000 Processor with Radeon Graphics, Ryzen Threadripper PRO 5000WX- Desktop Processors, Athlon 3000 Mobile Processors with Radeon Graphics, Ryzen 3000 Mobile Processor with Radeon Graphics, Ryzen 4000 Mobile Processors with Radeon Graphics, Ryzen 5000 Processors with Radeon Graphics, Ryzen 7020 Processors with Radeon Graphics, Ryzen 6000 Processor with Radeon Graphics, Ryzen 7035 Processor with Radeon Graphics, Ryzen 7040 Processors with Radeon Graphics, Ryzen 7000 Mobile Processors, EPYC Embedded 7003, EPYC Embedded 9004, Ryzen Embedded 5000, Ryzen Embedded 7000, Ryzen Embedded V2000 and Ryzen Embedded V3000. It has been rated as critical. Affected by this vulnerability is an unknown functionality of the component SMM Handler. Performing a manipulation results in input validation. This vulnerability is cataloged as CVE-2023-31345. The attack must be initiated from a local position. There is no exploit available.

Detailsinfo

A vulnerability was found in AMD EPYC 7003 Processors, EPYC 9004 Processors, Instinct MI300A, Ryzen 3000 Desktop Processors, Ryzen 5000 Desktop Processors, Ryzen 5000 Desktop Processor with Radeon Graphics, Ryzen 7000 Desktop Processors, Ryzen 4000 Desktop Processor with Radeon Graphics, Ryzen 8000 Processor with Radeon Graphics, Ryzen Threadripper PRO 5000WX- Desktop Processors, Athlon 3000 Mobile Processors with Radeon Graphics, Ryzen 3000 Mobile Processor with Radeon Graphics, Ryzen 4000 Mobile Processors with Radeon Graphics, Ryzen 5000 Processors with Radeon Graphics, Ryzen 7020 Processors with Radeon Graphics, Ryzen 6000 Processor with Radeon Graphics, Ryzen 7035 Processor with Radeon Graphics, Ryzen 7040 Processors with Radeon Graphics, Ryzen 7000 Mobile Processors, EPYC Embedded 7003, EPYC Embedded 9004, Ryzen Embedded 5000, Ryzen Embedded 7000, Ryzen Embedded V2000 and Ryzen Embedded V3000. It has been classified as critical. This affects an unknown function of the component SMM Handler. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-1274. The product conducts a secure-boot process that transfers bootloader code from Non-Volatile Memory (NVM) into Volatile Memory (VM), but it does not have sufficient access control or other protections for the Volatile Memory. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Improper input validation in the SMM handler may allow a privileged attacker to overwrite SMRAM, potentially leading to arbitrary code execution.

The advisory is shared at amd.com. This vulnerability is uniquely identified as CVE-2023-31345 since 04/27/2023. The exploitability is told to be difficult. An attack has to be approached locally. Additional levels of successful authentication are needed for exploitation. Neither technical details nor an exploit are publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-35656). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.9

VulDB Base Score: 6.4
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (AMD): 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper access control for volatile memory containing boot code
CWE: CWE-1274 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/27/2023 🔍
02/12/2025 +657 days 🔍
02/12/2025 +0 days 🔍
09/24/2025 +224 days 🔍

Sourcesinfo

Advisory: amd.com
Status: Confirmed

CVE: CVE-2023-31345 (🔍)
GCVE (CVE): GCVE-0-2023-31345
GCVE (VulDB): GCVE-100-295449
EUVD: 🔍

Entryinfo

Created: 02/12/2025 08:41
Updated: 09/24/2025 04:53
Changes: 02/12/2025 08:41 (60), 09/24/2025 00:38 (3), 09/24/2025 04:53 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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