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CVE-2021-26313— AMD Speculative Code Store Bypass

Quick assessment

Affected
AMD All supported processors
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.

Intel Processors（英特尔处理器）是美国英特尔（Intel）公司的提供解释计算机指令以及处理计算机软件中的数据。 Intel Processors 和 AMD CPU中存在信息泄露漏洞，该漏洞源于网络系统或产品在运行过程中存在配置等错误。未授权的攻击者可利用漏洞获取受影响组件敏感信息。

AI Predicted 7.5 Difficulty: Hard EPSS 0.33% · P23
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I. Basic Information for CVE-2021-26313

Vulnerability Information
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Vulnerability Title
AMD Speculative Code Store Bypass
Source: CVE Program / CVE List V5
Vulnerability Description
Potential speculative code store bypass in all supported CPU products, in conjunction with software vulnerabilities relating to speculative execution of overwritten instructions, may cause an incorrect speculation and could result in data leakage.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
通过时间差异性导致的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Intel Processors 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Intel Processors（英特尔处理器）是美国英特尔（Intel）公司的提供解释计算机指令以及处理计算机软件中的数据。 Intel Processors 和 AMD CPU中存在信息泄露漏洞，该漏洞源于网络系统或产品在运行过程中存在配置等错误。未授权的攻击者可利用漏洞获取受影响组件敏感信息。
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 All supported processors unspecified ~ undefined -

II. Public POCs for CVE-2021-26313

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III. Intelligence Information for CVE-2021-26313

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Other References for CVE-2021-26313 (1)

IV. Related Vulnerabilities

Same product: All supported processors
Same vendor: AMD
Same weakness: CWE-208

V. Comments for CVE-2021-26313

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