CVE-2021-26390 : What You Need to Know

This article provides detailed information about CVE-2021-26390, a security vulnerability affecting AMD Ryzen™ Series and Athlon™ Series processors.

Understanding CVE-2021-26390

This section outlines the impact and technical details of the CVE-2021-26390 vulnerability.

What is CVE-2021-26390?

The CVE-2021-26390 vulnerability involves a malicious or compromised UApp or ABL coercing the bootloader into corrupting arbitrary memory, potentially leading to data integrity loss.

The Impact of CVE-2021-26390

The vulnerability affects various versions of AMD Ryzen™ Series and Athlon™ Series processors, posing a risk to the integrity of stored data.

Technical Details of CVE-2021-26390

Here, technical aspects like the vulnerability description, affected systems, and exploitation mechanism are discussed.

Vulnerability Description

A malicious program could manipulate the bootloader to corrupt memory, resulting in potential data integrity compromise on affected systems.

Affected Systems and Versions

AMD Ryzen™ Series and Athlon™ Series processors of various versions are impacted by this security flaw.

Exploitation Mechanism

By coercing the bootloader, an attacker can exploit this vulnerability to tamper with system memory, allowing for unauthorized data manipulation.

Mitigation and Prevention

This section focuses on immediate and long-term security measures to address CVE-2021-26390.

Immediate Steps to Take

Users are advised to apply security updates from AMD and follow best practices to mitigate the risk of data corruption.

Long-Term Security Practices

Implementing robust security protocols and regularly updating system firmware are crucial for maintaining data integrity and preventing exploitation.

Patching and Updates

AMD has released security updates to address CVE-2021-26390. Users should promptly apply these patches to safeguard their systems.