CVE-2021-46754

Description

Insufficient input validation in the ASP (AMD Secure Processor) bootloader may allow an attacker with a compromised Uapp or ABL to coerce the bootloader into exposing sensitive information to the SMU (System Management Unit) resulting in a potential loss of confidentiality and integrity.

Category

9.1
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.13%
Vendor Advisory amd.com
Affected: AMD Ryzen™ 2000 series Desktop Processors “Raven Ridge” AM4
Affected: AMD Ryzen™ 5000 Series Desktop processor with Radeon™ Graphics “Cezanne” AM4
Affected: AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Dali”/”Dali” ULP
Affected: AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Pollock”
Affected: AMD Ryzen™ 2000 Series Mobile Processors “Raven Ridge” FP5
Affected: AMD Ryzen™ 3000 Series Mobile processor, 2nd Gen AMD Ryzen™ Mobile Processors with Radeon™ Graphics “Picasso”
Affected: AMD Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics “Renoir”
Affected: AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Lucienne”
Affected: AMD Ryzen™ 5000 Series Mobile processors with Radeon™ Graphics “Cezanne”
Affected: AMD AMD Ryzen™ Embedded R1000
Affected: AMD AMD Ryzen™ Embedded R2000
Affected: AMD AMD Ryzen™ Embedded V1000
Affected: AMD AMD Ryzen™ Embedded V2000
Published at:
Updated at:

References

Link Tags
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4001 vendor advisory
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-5001

Frequently Asked Questions

What is the severity of CVE-2021-46754?
CVE-2021-46754 has been scored as a critical severity vulnerability.
How to fix CVE-2021-46754?
To fix CVE-2021-46754, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-46754 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-46754 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-46754?
CVE-2021-46754 affects AMD Ryzen™ 2000 series Desktop Processors “Raven Ridge” AM4, AMD Ryzen™ 5000 Series Desktop processor with Radeon™ Graphics “Cezanne” AM4, AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Dali”/”Dali” ULP, AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Pollock”, AMD Ryzen™ 2000 Series Mobile Processors “Raven Ridge” FP5, AMD Ryzen™ 3000 Series Mobile processor, 2nd Gen AMD Ryzen™ Mobile Processors with Radeon™ Graphics “Picasso”, AMD Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics “Renoir” , AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Lucienne”, AMD Ryzen™ 5000 Series Mobile processors with Radeon™ Graphics “Cezanne”, AMD AMD Ryzen™ Embedded R1000, AMD AMD Ryzen™ Embedded R2000, AMD AMD Ryzen™ Embedded V1000, AMD AMD Ryzen™ Embedded V2000.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.