CVE-2021-46747

HIGH EPSS 0.9%

Published Jun 1, 20264w ago · Modified Jun 17, 20261w ago

7.1 CVSS 4.0

High

Published Jun 1, 2026 4w ago

Last Modified Jun 17, 2026 1w ago

Description

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.

CVSS Details

Base Score

7.1

Exploitability

—

Impact

—

Vector string

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

Threat Intelligence

EPSS Exploit Probability

0.9% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-1220

References 2

amd.com https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-4017.html
amd.com https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-6027.html

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.