← Vulnerability feed

Vulnerability record · CVE-2021-46747 · published 1 June 2026

CVE-2021-46747: Insufficient granularity of access control in ASP (AMD Secure Processor) may allow an attacker with an untrust…

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.

7.1 CVSS 4.0 High EPSS 0.10% · top 99.3% CWE-1220 · CWE-1220 Awaiting Analysis
7.1CVSS 4.0 base score
0.10%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
22 Jul 2026Last modified by NVD

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: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:

References

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

Track CVE-2021-46747 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.8CVE-2026-56155Microsoft AD FS access control flaw allows local privilege elevationActive Directory Federation Services (AD FS) on multiple Windows client and server versions has insufficient granularity in its access control, letti…KEVEPSS 0.35%analysed7.8CVE-2026-33825Microsoft Defender Antimalware Platform access control flaw allows local privilege escalationMicrosoft Defender Antimalware Platform has insufficient granularity of access control (CWE-1220), letting an authorized local attacker elevate privi…KEVEPSS 0.40%analysed9.8CVE-2025-31201Apple OS Pointer Authentication bypass via arbitrary read/writeApple removed vulnerable code that allowed an attacker holding arbitrary read and write capability to bypass Pointer Authentication across iOS, iPadO…KEVEPSS 14%analysed

Source: NIST National Vulnerability Database (record CVE-2021-46747), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.