---
id: CVE-2026-18451
title: >-
  Supermicro BMC's iKVM feature is vulnerable to KVM session hijacking due to a
  predictable time-seeded launch token
summary: >-
  The HTML5 KVM-over-IP console authenticates with a token returned by the web
  interface. Weaknesses in token generation may allow an attacker to guess the
  session token and take control of the KVM session.
severity: low
cvss: 3.1
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-337
vendor: SMCI
product: MBD-X12SPI
affected:
  - MBD-X12SPI 01.07.20
published: '2026-10-27'
updated: '2026-10-27'
sourceUpdated: '2026-10-27T07:51:10.336Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-18451'
references:
  - url: 'https://www.supermicro.com/en/support/security_BMC_IPMI_Oct_2026_1'
tags:
  - cve.org
epss: 0.00151
epssPercentile: 0.04236
ingestedAt: '2026-10-27T16:11:59.246Z'
---

## Overview

The HTML5 KVM-over-IP console authenticates with a token returned by the web interface. Weaknesses in token generation may allow an attacker to guess the session token and take control of the KVM session.

## Affected

- `MBD-X12SPI 01.07.20`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.