What is CVE-2026-3821?

CVE-2026-3821 is a high-severity vulnerability in Smci X14dbg-dap,x14dbi, classified under OS Command Injection. CVSS score: 8.8/10. Published 2026-07-22.

How severe is CVE-2026-3821?

High severity. CVSS v3 base score is 8.8 out of 10.

RCE in Smci X14dbg-dap,x14dbi

CVE-2026-3821

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…

Vulnerability class: Command Injection (OS Command Injection)

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Smci X14dbg-dap,x14dbi — versions 01.00.16.00, 1.03.02.06

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

def9a96e-e099-41a9-bfac-30fd4f82c411

Frequently asked questions

What is CVE-2026-3821?: CVE-2026-3821 is a high-severity vulnerability in Smci X14dbg-dap,x14dbi, classified under OS Command Injection. CVSS score: 8.8/10. Published 2026-07-22.
How severe is CVE-2026-3821?: High severity. CVSS v3 base score is 8.8 out of 10.