🛡️ CVE-2026-3821

🟠 CVSS 8.8 — High ✅ No Known Exploit CWE-78 NVD
8.8
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2026-3821 is classified as CWE-78: OS Command Injection. Untrusted input reaches a shell command without neutralisation, so an attacker can run arbitrary operating system commands.

Affected software

CVE-2026-3821 is recorded against 1 package.

  • unknown

Timeline and source

Published on 22 July 2026 and last revised on 23 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

www.supermicro.com

Details

Severity HIGH
CVSS Score 8.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE CWE-78
Public Exploit ✅ No
Source NVD
Published 2026-07-22
Updated 2026-08-11
Modified 2026-07-23
Fix URL N/A

Affected Packages

Software From version Fixed in
unknown — —

Similar Threats

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