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CVE-2022-26858

Quick assessment

Affected
Dell CPG BIOS
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.

Dell BIOS是美国戴尔（Dell）公司的一个计算机主板上小型内存芯片上的嵌入式软件。 Dell BIOS存在安全漏洞，该漏洞源于包含不正确的身份验证漏洞，经过本地身份验证的恶意用户可能会通过向SMI发送恶意输入以绕过安全控制来利用此漏洞。

CVSS 6.1 · Medium EPSS 0.17% · P6

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 1

VendorProduct Version RangeStatus
Dell CPG BIOS unspecified< All affected
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I. Basic Information for CVE-2022-26858

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Dell BIOS versions contain an Improper Authentication vulnerability. A locally authenticated malicious user could potentially exploit this vulnerability by sending malicious input to an SMI in order to bypass security controls.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Dell BIOS 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Dell BIOS是美国戴尔（Dell）公司的一个计算机主板上小型内存芯片上的嵌入式软件。 Dell BIOS存在安全漏洞，该漏洞源于包含不正确的身份验证漏洞，经过本地身份验证的恶意用户可能会通过向SMI发送恶意输入以绕过安全控制来利用此漏洞。
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
Dell CPG BIOS unspecified ~ All -

II. Public POCs for CVE-2022-26858

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III. Intelligence Information for CVE-2022-26858

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Other References for CVE-2022-26858 (1)

Same Patch Batch · Dell · 2022-09-06 · 4 CVEs total

CVE-2022-26861 7.9 HIGH Dell BIOS 安全漏洞
CVE-2022-26860 7.5 HIGH Dell BIOS 缓冲区错误漏洞
CVE-2022-26859 6.1 MEDIUM Dell BIOS 安全漏洞

IV. Related Vulnerabilities

Same product: CPG BIOS
Same vendor: Dell
Same weakness: CWE-287

V. Comments for CVE-2022-26858

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