Supermicro BMC's SMTP service contains a command injection vulnerability

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Summary

CVECVE-2026-3820
StatePUBLISHED
AssignerSupermicro
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-04 09:16:28 UTC
Updated2026-06-04 16:40:28 UTC
DescriptionThere is a vulnerability in the Supermicro BMC SMTP service at Supermicro AS-2115HS-TNR.  An attacker may obtain administrator privileges and inject specially crafted characters into the SMTP service configuration. This may cause the underlying system to execute unintended commands during process invocation. Potential impact includes denial-of-service attacks, arbitrary code execution, or permanent compromise of the controller.

Risk And Classification

Primary CVSS: v3.1 7.2 HIGH from def9a96e-e099-41a9-bfac-30fd4f82c411

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

EPSS: 0.000720000 probability, percentile 0.220440000 (date 2026-06-09)

Problem Types: CWE-78 | CWE-78 CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection')

VersionSourceTypeScoreSeverityVector
3.1def9a96e-e099-41a9-bfac-30fd4f82c411Secondary7.2HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
3.1CNACVSS7.2HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA SMCI AS-2115HS-TNR affected 01.08.01 BMC
CNA SMCI AS-2115HS-TNR affected 01.06.04 BMC

References

ReferenceSourceLinkTags
www.supermicro.com/en/support/security_BMC_IPMI_Jun_2026 def9a96e-e099-41a9-bfac-30fd4f82c411 www.supermicro.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Coreweave Red Team and Hoang Bui from Coreweave (en)

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