CVE-2021-46758

Description

Insufficient validation of SPI flash addresses in the ASP (AMD Secure Processor) bootloader may allow an attacker to read data in memory mapped beyond SPI flash resulting in a potential loss of availability and integrity.

6.1

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.10%

Vendor Advisory amd.com

Affected: AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics “Cezanne”

Affected: AMD Ryzen™ 7000 Series Desktop Processors “Raphael” XD3

Affected: AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics “Renoir” FP6

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™ 6000 Series Processors with Radeon™ Graphics "Rembrandt"

Affected: AMD AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics “Rembrandt-R”

Affected: AMD AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics “Barcelo”

Affected: AMD AMD Ryzen™ 7030 Series Mobile Processors with Radeon™ Graphics “Barcelo-R”

References

Link	Tags
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4002	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-46758?: CVE-2021-46758 has been scored as a medium severity vulnerability.
How to fix CVE-2021-46758?: To fix CVE-2021-46758, 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-2021-46758 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2021-46758 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-2021-46758?: CVE-2021-46758 affects AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics “Cezanne”, AMD Ryzen™ 7000 Series Desktop Processors “Raphael” XD3, AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics “Renoir” FP6, AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Lucienne”, AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Cezanne”, AMD AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics "Rembrandt", AMD AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics “Rembrandt-R”, AMD AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics “Barcelo”, AMD AMD Ryzen™ 7030 Series Mobile Processors with Radeon™ Graphics “Barcelo-R”.