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CVE-2021-26311— AMD Secure Encrypted Virtualization

Quick assessment

Affected
AMD SEV/SEV-ES
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 Secure Encrypted Virtualization是美国AMD公司的一个应用软件。硬件加速的内存加密，以保护使用中的数据。 AMD Secure Encrypted Virtualization存在安全漏洞。该漏洞可能导致在机中执行任意命令。

AI Predicted 8.1 Difficulty: Hard EPSS 1.68% · P75
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I. Basic Information for CVE-2021-26311

Vulnerability Information
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Vulnerability Title
AMD Secure Encrypted Virtualization
Source: CVE Program / CVE List V5
Vulnerability Description
In the AMD SEV/SEV-ES feature, memory can be rearranged in the guest address space that is not detected by the attestation mechanism which could be used by a malicious hypervisor to potentially lead to arbitrary code execution within the guest VM if a malicious administrator has access to compromise the server hypervisor.
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 Secure Encrypted Virtualization 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
AMD Secure Encrypted Virtualization是美国AMD公司的一个应用软件。硬件加速的内存加密，以保护使用中的数据。 AMD Secure Encrypted Virtualization存在安全漏洞。该漏洞可能导致在机中执行任意命令。
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 SEV/SEV-ES unspecified ~ SEV-SNP -

II. Public POCs for CVE-2021-26311

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III. Intelligence Information for CVE-2021-26311

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Other References for CVE-2021-26311 (1)

IV. Related Vulnerabilities

Same product: SEV/SEV-ES
Same vendor: AMD

V. Comments for CVE-2021-26311

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