Supermicro SMCI AS-2115HS-TNR 01.06.04/01.08.01 SMTP Service os command injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.2$0-$5k1.60

Summaryinfo

A vulnerability marked as critical has been reported in Supermicro SMCI AS-2115HS-TNR 01.06.04/01.08.01. Affected by this issue is some unknown functionality of the component SMTP Service. This manipulation causes os command injection. This vulnerability is handled as CVE-2026-3820. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as critical was found in Supermicro SMCI AS-2115HS-TNR 01.06.04/01.08.01. Affected by this vulnerability is an unknown code of the component SMTP Service. The manipulation with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

There 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.

The weakness was released with Coreweave Red Team. The advisory is shared at supermicro.com. This vulnerability is known as CVE-2026-3820 since 03/09/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation needs additional levels of successful authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/04/2026). MITRE ATT&CK project uses the attack technique T1202 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-34226). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.2
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.2
VulDB Temp Score: 7.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.2
CNA Vector (Supermicro): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Os command injection
CWE: CWE-78 / CWE-77 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

03/09/2026 CVE reserved
06/04/2026 +86 days Advisory disclosed
06/04/2026 +0 days VulDB entry created
06/04/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: supermicro.com
Organization: Coreweave Red Team
Status: Confirmed

CVE: CVE-2026-3820 (🔒)
GCVE (CVE): GCVE-0-2026-3820
GCVE (VulDB): GCVE-100-368281
EUVD: 🔒

Entryinfo

Created: 06/04/2026 11:41
Updated: 06/04/2026 12:48
Changes: 06/04/2026 11:41 (63), 06/04/2026 12:48 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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