AMD Radeon PRO V620 insufficient granularity of access control

CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability has been found in AMD Athlon 3000 Mobile Processors with Radeon Graphics, Ryzen Threadripper PRO 3000 WX-Series Processors, Ryzen 5000 Desktop Processors with Radeon Graphics, Ryzen Threadripper PRO 5000 WX-Series Processors, Ryzen 4000 Mobile Processors with Radeon Graphics, Ryzen 3000 Mobile Processors with Radeon Graphics, Ryzen 5000 Mobile Processors with Radeon Graphics, Ryzen 3000 Desktop Processors, Athlon 3000 Desktop Processors with Radeon Graphics, Ryzen 7030 Mobile Processors with Radeon Graphics, Ryzen 4000 Desktop Processors, Ryzen 5000 Desktop Processors, Ryzen Embedded R1000 Processors, Ryzen Embedded R2000 Processors, Ryzen Embedded 5000 Processors, Ryzen Embedded V1000 Processors, Ryzen Embedded V2000 Processors, Ryzen Embedded V3000 Processors, Radeon RX 5000 Graphics Products, Radeon PRO W5000 Graphics Products, Radeon RX 6000 Graphics Products, Radeon RX 7000 Graphics Products, Radeon PRO W6000 Graphics Products, Radeon PRO W7000 Graphics Products, Radeon PRO V520 and Radeon PRO V620 and classified as critical. The affected element is an unknown function. The manipulation leads to insufficient granularity of access control. This vulnerability is traded as CVE-2021-46747. An attack has to be approached locally. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, has been found in AMD Athlon 3000 Mobile Processors with Radeon Graphics, Ryzen Threadripper PRO 3000 WX-Series Processors, Ryzen 5000 Desktop Processors with Radeon Graphics, Ryzen Threadripper PRO 5000 WX-Series Processors, Ryzen 4000 Mobile Processors with Radeon Graphics, Ryzen 3000 Mobile Processors with Radeon Graphics, Ryzen 5000 Mobile Processors with Radeon Graphics, Ryzen 3000 Desktop Processors, Athlon 3000 Desktop Processors with Radeon Graphics, Ryzen 7030 Mobile Processors with Radeon Graphics, Ryzen 4000 Desktop Processors, Ryzen 5000 Desktop Processors, Ryzen Embedded R1000 Processors, Ryzen Embedded R2000 Processors, Ryzen Embedded 5000 Processors, Ryzen Embedded V1000 Processors, Ryzen Embedded V2000 Processors, Ryzen Embedded V3000 Processors, Radeon RX 5000 Graphics Products, Radeon PRO W5000 Graphics Products, Radeon RX 6000 Graphics Products, Radeon RX 7000 Graphics Products, Radeon PRO W6000 Graphics Products, Radeon PRO W7000 Graphics Products, Radeon PRO V520 and Radeon PRO V620. This issue affects an unknown part. The manipulation with an unknown input leads to a insufficient granularity of access control vulnerability. Using CWE to declare the problem leads to CWE-1220. The product implements access controls via a policy or other feature with the intention to disable or restrict accesses (reads and/or writes) to assets in a system from untrusted agents. However, implemented access controls lack required granularity, which renders the control policy too broad because it allows accesses from unauthorized agents to the security-sensitive assets. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Insufficient granularity of access control in ASP (AMD Secure Processor) may allow an attacker with an untrusted user space application to map sensitive SMN (System Management Network) apertures leading to a potential escalation of privileges.

The advisory is shared at amd.com. The identification of this vulnerability is CVE-2021-46747 since 03/31/2022. The exploitation is known 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.

Upgrading eliminates this vulnerability.

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: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.1

VulDB Base Score: 6.4
VulDB Temp Score: 6.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Insufficient granularity of access control
CWE: CWE-1220 / 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: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

03/31/2022 CVE reserved
06/02/2026 +1524 days Advisory disclosed
06/02/2026 +0 days VulDB entry created
06/02/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: amd.com
Status: Confirmed

CVE: CVE-2021-46747 (🔒)
GCVE (CVE): GCVE-0-2021-46747
GCVE (VulDB): GCVE-100-367769

Entryinfo

Created: 06/02/2026 07:54
Changes: 06/02/2026 07:54 (63)
Complete: 🔍
Cache ID: 216::103

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

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