CVE-2026-3820Network attack vector

Authenticated command execution via SMTP configuration injection

Published Jun 4, 2026 · Updated Jun 4, 2026

Command injection in the BMC SMTP service of Supermicro AS-2115HS-TNR 01.06.04 and 01.08.01 allows remote authenticated users to execute commands. The SMTP configuration accepts specially crafted characters and passes the resulting value into a process invocation without neutralizing command syntax. Administrator privileges are required; successful exploitation can crash services, run arbitrary code, or permanently compromise the controller.

CVSS severity7.2
High
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in the BMC SMTP service of Supermicro AS-2115HS-TNR 01.06.04 and 01.08.01 allows remote authenticated users to execute commands. The SMTP configuration accepts specially crafted characters and passes the resulting value into a process invocation without neutralizing command syntax. Administrator privileges are required; successful exploitation can crash services, run arbitrary code, or permanently compromise the controller.

The record

CVE
CVE-2026-3820
Published
Jun 4, 2026
Updated
Jun 4, 2026
Vendor
Super Micro Computer, Inc.
Product
AS-2115HS-TNR
Classifications
CWE-78, T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jun 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 4, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=01.06.04
  2. Affected versionversion=01.08.01

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Super Micro Computer, Inc. · AS-2115HS-TNRversion=01.06.04; version=01.08.01

Published CVSS scores

7.2Super Micro Computer, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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