CVE-2026-3821 — HIGH (8.8) — White Hats Nepal

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.

CVSS Score

8.8

HIGH

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

Related Weaknesses (CWE)

CWE-78

References

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

FAQ

What is CVE-2026-3821?

CVE-2026-3821 is a vulnerability with a CVSS score of 8.8 (HIGH). 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...

How severe is CVE-2026-3821?

CVE-2026-3821 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-3821?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.