CVE-2026-3821

HIGH 8.8

Supermicro SMASH service contain an Arbitrary code execution issue

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-78
Vendor	smci
Product	x14dbg-dap,x14dbi
Published	Jul 22, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

SMCI / X14DBG-DAP,X14DBI

01.00.16.00 1.03.02.06

References

NVD ↗ CVE.org ↗ EPSS Data ↗

supermicro.com: https://www.supermicro.com/en/support/security_BMC_IPMI_Jul_2026

Credits

Anton Beidin and the research team at Eclypsium, Inc.