CVE-2026-18450 Supermicro BMC contains Unprotected IPMI Commands Accepted on Active RMCP+ Sessions vulnerability

CriticalCVSS 9.8 EPSS 0.40%

Published: 2026-10-27 09:46
Updated: 2026-11-04 17:17
Exploit status: No public exploit known

Description

The BMC does not correctly enforce integrity and encryption requirements for IPMI commands. An attacker may be able to craft packets that execute arbitrary commands on an active session.

Affected products

Product	Affected versions	Fixed in
SMCI X12SPI	= 01.07.20	No fix listed

References

www.supermicro.com

CVSS v3.1

9.8 Critical

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

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

All scores (2)

v3.1 9.8 · supermicro
v3.1 9.8 · def9a96e-e099-41a9-bfac-30fd4f82c411

Weakness & likelihood

EPSS (exploitation probability, 30 days): 0.40% (percentile 34.8)
CWE: CWE-306 Missing Authentication for Critical Function

Public exploit references

Metadata only. CVERadar never hosts or runs exploit code.

No public exploit references known.