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CVE-2026-3821— Supermicro SMASH service contain an Arbitrary code execution issue

Quick assessment

Affected
SMCI X14DBG-DAP,X14DBI
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.

SuperMicro SMASH是美国SuperMicro公司的一款超级微硬件服务器。 SuperMicro SMASH 01.00.16.00版本和1.03.02.06版本存在命令注入漏洞，该漏洞源于输入处理问题，可能导致授权攻击者利用SMASH的输入功能破坏数据完整性或对BMC发起拒绝服务攻击。受影响产品包含X14DBG-DAP和X14DBI。

CVSS 8.8 · High EPSS 0.64% · P49

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

VendorProduct Version RangeStatus
SMCI X14DBG-DAP,X14DBI 01.00.16.00 affected
1.03.02.06 affected
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I. Basic Information for CVE-2026-3821

Vulnerability Information
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Vulnerability Title
Supermicro SMASH service contain an Arbitrary code execution issue
Source: CVE Program / CVE List V5
Vulnerability Description
Supermicro (SMC) SMASH services contain an Arbitrary code execution issue in X14DBG-DAP and X14DBI. An authorized attacker can exploit SMASH’s input capability to compromise data integrity or launch a Denial-of-Service (DoS) attack against the BMC.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
SuperMicro 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SuperMicro SMASH是美国SuperMicro公司的一款超级微硬件服务器。 SuperMicro SMASH 01.00.16.00版本和1.03.02.06版本存在命令注入漏洞，该漏洞源于输入处理问题，可能导致授权攻击者利用SMASH的输入功能破坏数据完整性或对BMC发起拒绝服务攻击。受影响产品包含X14DBG-DAP和X14DBI。
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
SMCI X14DBG-DAP,X14DBI 01.00.16.00 -

II. Public POCs for CVE-2026-3821

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III. Intelligence Information for CVE-2026-3821

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Vendor Advisories for CVE-2026-3821 (1)

IV. Related Vulnerabilities

Same vendor: SMCI
Same weakness: CWE-78

V. Comments for CVE-2026-3821

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