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Amd EUVDEUVD-2021-34843

| CVE-2021-46747 HIGH
Insufficient Granularity of Access Control (CWE-1220)
2026-06-01 AMD GHSA-59gr-g8qh-wf7f
7.1
CVSS 4.0 · NVD
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Severity by source

NVD PRIMARY
7.1 HIGH
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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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
Attack Vector
Local
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
X

Lifecycle Timeline

2
CVSS changed
Jun 01, 2026 - 21:22 NVD
7.1 (HIGH)
CVE Published
Jun 01, 2026 - 19:01 cve.org
HIGH 7.1

DescriptionCVE.org

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.

AnalysisAI

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. Rated high severity (CVSS 7.1). No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-1220. 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. Affected products include: Amd Amd Athlon™ 3000 Series Mobile Processors With Radeon™ Graphics, Amd Amd Ryzen™ Threadripper™ Pro 3000 Wx-Series Processors, Amd Amd Ryzen™ 5000 Series Desktop Processors With Radeon™ Graphics, Amd Amd Ryzen™ Threadripper™ Pro 5000 Wx-Series Processors, Amd Amd Ryzen™ 4000 Series Mobile Processors With Radeon™ Graphics.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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EUVD-2021-34843 vulnerability details – vuln.today

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