VDB-323002 · CVE-2023-31326 · EUVD-2023-35637

AMD Ryzen 5000 Mobile Processors with Radeon Graphics Trusted Execution Environment uninitialized variable

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
2.6	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in AMD Ryzen 5000 Mobile Processors with Radeon Graphics, Ryzen 7030 Mobile processors with Radeon Graphics, Ryzen 4000 Desktop Processors, Ryzen 5000 Desktop Processors, Ryzen 7040 Mobile Processors with Radeon Graphics, Ryzen 4000 Mobile Processors with Radeon Graphics, Ryzen 6000 Processors with Radeon Graphics, Ryzen 7020 Processors with Radeon Graphics, Ryzen Embedded V2000 Processors, Ryzen Embedded V3000 Processors, Radeon RX 7000 Graphics Products, Radeon PRO W7000 Graphics Products, Instinct MI210, Instinct MI250 and Radeon PRO V710 Graphics Products. This impacts an unknown function of the component Trusted Execution Environment. Executing a manipulation can lead to uninitialized variable. This vulnerability is tracked as CVE-2023-31326. The attack is restricted to local execution. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in AMD Ryzen 5000 Mobile Processors with Radeon Graphics, Ryzen 7030 Mobile processors with Radeon Graphics, Ryzen 4000 Desktop Processors, Ryzen 5000 Desktop Processors, Ryzen 7040 Mobile Processors with Radeon Graphics, Ryzen 4000 Mobile Processors with Radeon Graphics, Ryzen 6000 Processors with Radeon Graphics, Ryzen 7020 Processors with Radeon Graphics, Ryzen Embedded V2000 Processors, Ryzen Embedded V3000 Processors, Radeon RX 7000 Graphics Products, Radeon PRO W7000 Graphics Products, Instinct MI210, Instinct MI250 and Radeon PRO V710 Graphics Products. This vulnerability affects an unknown functionality of the component Trusted Execution Environment. The manipulation with an unknown input leads to a uninitialized variable vulnerability. The CWE definition for the vulnerability is CWE-457. The code uses a variable that has not been initialized, leading to unpredictable or unintended results. As an impact it is known to affect confidentiality. CVE summarizes:

Use of an uninitialized variable in the ASP could allow an attacker to access leftover data from a trusted execution environment (TEE) driver, potentially leading to loss of confidentiality.

The advisory is available at amd.com. This vulnerability was named CVE-2023-31326 since 04/27/2023. The exploitation appears to be difficult. Local access is required to approach this attack. The technical details are unknown and an exploit is not available.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at EUVD (EUVD-2023-35637) and CERT Bund (WID-SEC-2025-1770). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

Debian Linux
Ubuntu Linux
Oracle Linux
Dell PowerEdge
Lenovo Computer
HP Computer
AMD Prozessor

Productinfo

Vendor

Name

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.6
VulDB Meta Temp Score: 2.6

VulDB Base Score: 2.5
VulDB Temp Score: 2.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 2.8
CNA Vector (AMD): 🔒

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Uninitialized variable
CWE: CWE-457 / CWE-453
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/27/2023 CVE reserved
09/06/2025 +863 days Advisory disclosed
09/06/2025 +0 days VulDB entry created
12/13/2025 +98 days VulDB entry last update

Sourcesinfo

Advisory: amd.com
Status: Confirmed

CVE: CVE-2023-31326 (🔒)
GCVE (CVE): GCVE-0-2023-31326
GCVE (VulDB): GCVE-100-323002
EUVD: 🔒
CERT Bund: WID-SEC-2025-1770 - AMD Prozessoren: Mehrere Schwachstellen

Entryinfo

Created: 09/06/2025 20:00
Updated: 12/13/2025 16:49
Changes: 09/06/2025 20:00 (61), 09/06/2025 22:29 (1), 12/13/2025 16:49 (7)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.