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CVE-2021-26384

Quick assessment

Affected
AMD Ryzen™ Series
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

AMD Ryzen是美国超威半导体（AMD）公司的一款中央处理器（CPU）。 AMD Ryzen系列处理器存在缓冲区错误漏洞，该漏洞源于系统管理界面中的边界错误，本地用户可以利用该漏洞执行DoS 攻击。以下产品和版本受到影响：AMD Ryzen 2000 系列的桌面和移动处理器、AMD Ryzen 5000 系列带有 Radeon 显卡的桌面和移动处理器、 AMD Ryzen 3000系列的移动处理器、AMD Athlon 3000 系列带有 Radeon 显卡的移动处理器、 第二代 AMD Ryzen

AI Predicted 5.3 Difficulty: Theoretical EPSS 0.20% · P9

Possible ATT&CK Techniques 1 AI

T1211 · Exploitation for Stealth
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I. Basic Information for CVE-2021-26384

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A malformed SMI (System Management Interface) command may allow an attacker to establish a corrupted SMI Trigger Info data structure, potentially leading to out-of-bounds memory reads and writes when triggering an SMI resulting in a potential loss of resources.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
AMD Ryzen 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
AMD Ryzen是美国超威半导体（AMD）公司的一款中央处理器（CPU）。 AMD Ryzen系列处理器存在缓冲区错误漏洞，该漏洞源于系统管理界面中的边界错误，本地用户可以利用该漏洞执行DoS 攻击。以下产品和版本受到影响：AMD Ryzen 2000 系列的桌面和移动处理器、AMD Ryzen 5000 系列带有 Radeon 显卡的桌面和移动处理器、 AMD Ryzen 3000系列的移动处理器、AMD Athlon 3000 系列带有 Radeon 显卡的移动处理器、 第二代 AMD Ryzen
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
AMD Ryzen™ Series various -
AMD Athlon™ Series various -

II. Public POCs for CVE-2021-26384

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III. Intelligence Information for CVE-2021-26384

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Other References for CVE-2021-26384 (1)

Same Patch Batch · AMD · 2022-07-14 · 3 CVEs total

CVE-2021-26382 AMD Ryzen 安全特征问题漏洞
CVE-2022-23825 多款AMD处理器安全漏洞

IV. Related Vulnerabilities

Same product: Ryzen™ Series
Same vendor: AMD

V. Comments for CVE-2021-26384

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