CVE-2021-26356

7.4HIGH

Key Information

Vendor
Amd
Status
Ryzen™ 3000 Series Desktop Processors “matisse” Am4
Amd Ryzen™ 5000 Series Desktop Processors “vermeer” Am4
3rd Gen Amd Ryzen™ Threadripper™ Processors “castle Peak” Hedt
Ryzen™ Threadripper™ Pro Processors “castle Peak” Ws
Vendor
CVE Published:
9 May 2023

Summary

A TOCTOU in ASP bootloader may allow an attacker to tamper with the SPI ROM following data read to memory potentially resulting in S3 data corruption and information disclosure.

Affected Version(s)

Ryzen™ 3000 Series Desktop Processors “Matisse” AM4 = various

AMD Ryzen™ 5000 Series Desktop Processors “Vermeer” AM4 = various

3rd Gen AMD Ryzen™ Threadripper™ Processors “Castle Peak” HEDT = various

CVSS V3.1

Score:
7.4
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published.

  • Vulnerability Reserved.

Collectors

NVD DatabaseMitre Database
.