CVE-2021-26367

MediumCVSS 6.0/10Last modified Jun 17, 2026

Description

A malicious attacker in x86 can misconfigure the Trusted Memory Regions (TMRs), which may allow the attacker to set an arbitrary address range for the TMR, potentially leading to a loss of integrity and availability.

Metrics

CVSS 3.1 6.0/10CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H

Affected software

Vendor	Product	Versions
AMD	AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics	—
AMD	AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics	—
AMD	AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics	—
AMD	AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics	—
AMD	AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics	—
AMD	AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics	—
AMD	AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics	—
AMD	AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics	—
AMD	AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics	—
AMD	AMD Ryzen™ 3000 Series Processors with Radeon™ Graphics	—
AMD	AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics	—
AMD	AMD Ryzen™ 3000 Series Processors with Radeon™ Graphics	—
AMD	AMD Radeon™ RX 6000 Series Graphics Cards	—
AMD	AMD Radeon™ PRO W6000 Series Graphics Cards	—
AMD	AMD Ryzen™ Embedded R1000 Series Processors	—
AMD	AMD Ryzen™ Embedded R2000 Series Processors	—
AMD	AMD Ryzen™ Embedded V1000 Series Processors	—
AMD	AMD Ryzen™ Embedded V2000 Series Processors	—

References

https://www.amd.com/en/resources/product-security/bulletin/amd-sb-4004.htmlVendor Advisory
https://www.amd.com/en/resources/product-security/bulletin/amd-sb-6005.htmlVendor Advisory

Timeline

Published: Aug 13, 2024
Last modified: Jun 17, 2026
NVD status: Analyzed

Related CVEs from 2021

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