CVE-2021-46747

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Summary

CVECVE-2021-46747
StatePUBLISHED
AssignerAMD
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-01 21:16:23 UTC
Updated2026-06-01 21:16:23 UTC
DescriptionInsufficient 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.

Risk And Classification

Primary CVSS: v4.0 7.1 HIGH from [email protected]

CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Problem Types: CWE-1220 | CWE-1220 CWE-1220 Insufficient Granularity of Access Control

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary7.1HIGHCVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/C...
4.0CNACVSS7.1HIGHCVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS v4.0 Breakdown

Attack Vector
Local
Attack Complexity
High
Attack Requirements
None
Privileges Required
High
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA AMD AMD Athlon 3000 Series Mobile Processors With Radeon Graphics unaffected PicassoPI-FP5 1.0.0.E Not specified
CNA AMD AMD Ryzen Threadripper PRO 3000 WX-Series Processors unaffected CastlePeakWSPI-sWRX8 1.0.0.9 Not specified
CNA AMD AMD Ryzen Threadripper PRO 3000 WX-Series Processors unaffected ChagallWSPI-sWRX8 1.0.0.2 Not specified
CNA AMD AMD Ryzen 5000 Series Desktop Processors With Radeon Graphics unaffected ComboAM4v2 PI 1.2.0.6 Not specified
CNA AMD AMD Ryzen Threadripper PRO 5000 WX-Series Processors unaffected ChagallWSPI-sWRX8 1.0.0.1 Not specified
CNA AMD AMD Ryzen 4000 Series Mobile Processors With Radeon Graphics unaffected RenoirPI-FP6 1.0.0.8 Not specified
CNA AMD AMD Ryzen 3000 Series Mobile Processors With Radeon Graphics unaffected PicassoPI-FP5 1.0.0.E Not specified
CNA AMD AMD Ryzen 5000 Series Mobile Processors With Radeon Graphics unaffected CezannePI-FP6 1.0.0.9 Not specified
CNA AMD AMD Ryzen 3000 Series Desktop Processors unaffected ComboAM4PI 1.0.0.9/ComboAM4 V2 PI 1.2.0.8 Not specified
CNA AMD AMD Athlon 3000 Series Desktop Processors With Radeon Graphics unaffected ComboAM4v2 PI 1.2.0.8 Not specified
CNA AMD AMD Ryzen 7030 Series Mobile Processors With Radeon Graphics unaffected CezannePI-FP6 1.0.0.9 Not specified
CNA AMD AMD Ryzen 4000 Series Desktop Processors unaffected ComboAM4v2 PI 1.2.0.6 Not specified
CNA AMD AMD Ryzen 5000 Series Desktop Processors unaffected ComboAM4 V2 PI 1.2.0.8 Not specified
CNA AMD AMD Ryzen Embedded R1000 Series Processors unaffected EmbeddedPI-FP5_1.2.0.A Not specified
CNA AMD AMD Ryzen Embedded R2000 Series Processors unaffected EmbeddedPI-FP5_1002 Not specified
CNA AMD AMD Ryzen Embedded 5000 Series Processors unaffected EmbAM4PI 1.0.0.2 Not specified
CNA AMD AMD Ryzen Embedded V1000 Series Processors Formerly Codenamed Raven Ridge unaffected EmbeddedPI-FP5_1.2.0.A Not specified
CNA AMD AMD Ryzen Embedded V1000 Series Processors Formerly Codenamed Picasso unaffected EmbeddedPI-FP5_1.2.0.A Not specified
CNA AMD AMD Ryzen Embedded V2000 Series Processors unaffected EmbeddedPI-FP6_1.0.0.6 Not specified
CNA AMD AMD Ryzen Embedded V3000 Series Processors unaffected EmbeddedPI-FP7r2_0080 Not specified
CNA AMD AMD Radeon RX 5000 Series Graphics Products unaffected AMD Software: Adrenalin Edition 25.11.1 (25.10.33.03) Not specified
CNA AMD AMD Radeon PRO W5000 Series Graphics Products unaffected AMD Software: PRO Edition 25.Q3.1 (25.10.32) Not specified
CNA AMD AMD Radeon RX 6000 Series Graphics Products unaffected AMD Software: Adrenalin Edition 25.11.1 (25.10.33.03) Not specified
CNA AMD AMD Radeon RX 7000 Series Graphics Products unaffected AMD Software: Adrenalin Edition 25.11.1 (25.10.33.03) Not specified
CNA AMD AMD Radeon PRO W6000 Series Graphics Products unaffected AMD Software: PRO Edition 25.Q3.1 (25.10.32) Not specified
CNA AMD AMD Radeon PRO W7000 Series Graphics Products unaffected AMD Software: PRO Edition 25.Q3.1 (25.10.32) Not specified
CNA AMD AMD Radeon PRO V520 unaffected Contact your AMD Customer Engineering representative Not specified
CNA AMD AMD Radeon PRO V620 unaffected Contact your AMD Customer Engineering representative Not specified

References

ReferenceSourceLinkTags
www.amd.com/en/resources/product-security/bulletin/AMD-SB-6027.html [email protected] www.amd.com
www.amd.com/en/resources/product-security/bulletin/AMD-SB-4017.html [email protected] www.amd.com
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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