CVE-2021-39298
Quick assessment
Affected
AMD 2nd Gen EPYC
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 System Management Mode是美国AMD公司的系统管理模式。一种CPU的执行模式。 AMD System Management Mode UEFI firmware 存在安全漏洞，该漏洞可能允许攻击者进行特权升级和任意代码执行。
Possible ATT&CK Techniques 1 AI
T1610 · Deploy Container
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I. Basic Information for CVE-2021-39298
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A potential vulnerability in AMD System Management Mode (SMM) interrupt handler may allow an attacker with high privileges to access the SMM resulting in arbitrary code execution which could be used by malicious actors to bypass security mechanisms provided in the UEFI firmware.
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 System Management Mode 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
AMD System Management Mode是美国AMD公司的系统管理模式。一种CPU的执行模式。 AMD System Management Mode UEFI firmware 存在安全漏洞，该漏洞可能允许攻击者进行特权升级和任意代码执行。
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 | 2nd Gen EPYC | Various | - |
|
| AMD | 3rd Gen EPYC | various | - |
|
| AMD | Ryzen 2000 Series | various | - |
|
| AMD | Ryzen 3000 Series | Various | - |
|
| AMD | Ryzen 5000 Series | various | - |
|
II. Public POCs for CVE-2021-39298
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2021-39298 (2)
IV. Related Vulnerabilities
V. Comments for CVE-2021-39298
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