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CVE-2023-20558

Quick assessment

Affected
AMD Ryzen™ 2000 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™ 2000存在安全漏洞，该漏洞源于AmdCpmOemSmm中控制流管理不充分。攻击者利用该漏洞篡改SMM处理程序，从而提升权限。

AI Predicted 8.1 Difficulty: Hard EPSS 0.67% · P49

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2023-20558

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Insufficient control flow management in AmdCpmOemSmm may allow a privileged attacker to tamper with the SMM handler potentially leading to an escalation of privileges.
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 2000 安全漏洞
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™ 2000存在安全漏洞，该漏洞源于AmdCpmOemSmm中控制流管理不充分。攻击者利用该漏洞篡改SMM处理程序，从而提升权限。
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™ 2000 Series various -
AMD Ryzen™ 3000 Series various -
AMD Ryzen™ 4000 Series various -
AMD Ryzen™ 5000 Series various -
AMD 2nd Gen AMD Ryzen™ Threadripper™ Processor Various -
AMD 3rd Gen AMD Ryzen™ Threadripper™ Processors various -
AMD Ryzen™ Threadripper™ PRO Processor various -

II. Public POCs for CVE-2023-20558

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III. Intelligence Information for CVE-2023-20558

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Other References for CVE-2023-20558 (1)

IV. Related Vulnerabilities

Same product: Ryzen™ 2000 Series
Same vendor: AMD

V. Comments for CVE-2023-20558

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