TI-2026-03309 Aliases CVE-2026-3820 GHSA-wp43-6fh8-q2qr

Supermicro BMC's SMTP service contains a command injection vulnerability

LOW 34CWE-78Published 2026-06-04 · Updated 2026-06-05

Key facts

Attack vector: Network
Privileges required: High
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-78.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.0037 31st percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
SMCI	AS-2115HS-TNR	01.08.01 and later; 01.06.04 and later	—	No fix listed	CNA

AS-2115HS-TNR VendorSMCI Affected 01.08.01 and later; 01.06.04 and later Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-3820
2026-10-03 Alias added: GHSA-wp43-6fh8-q2qr
2026-10-25 EPSS moved to the below the 50th percentile

References

Other 1

https://www.supermicro.com/en/support/security_BMC_IPMI_Jun_2026

TI-2026-81036 Supermicro BMC accepts unprotected IPMI commands on active sessions CVSS 3.1CRITICAL 9.8
TI-2026-03310 Supermicro SMASH service contain an Arbitrary code execution issue CVSS 3.1HIGH 8.8
TI-2026-81040 Privilege escalation in Supermicro BMC IPMI allows admin access CVSS 3.1HIGH 8.8
TI-2026-81034 Fixed key flaw in Supermicro BMC lets attackers run IPMI commands CVSS 3.1HIGH 7.5
TI-2025-11009 Supermicro BMC firmware update validation bypass CVSS 3.1HIGH 8.4
TI-2026-81038 Supermicro BMC grants IPMI session on out-of-order RAKP message 3 CVSS 3.1HIGH 7.4

See all 22 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences