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  4. CVE 2026 18450 supermicro bmc contains unprotected ipmi commands
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Back to active CVEs
Critical · CVSS 9.8CVE-2026-18450

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

Answer in brief

CVE-2026-18450 records a Critical severity (CVSS 9.8) vulnerability in Supermicro BMC contains Unprotected IPMI Commands Accepted on Active RMCP+ Sessions vulnerability. The current sources do not mark it as known exploited. The current feed maps SMCI/X12SPI (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 27, 2026Updated Oct 27, 2026Source checked Oct 27, 2026First seen by HOL Oct 27, 2026Material review Oct 27, 2026
Upstream Advisory

Key facts

Risk
Critical · CVSS 9.8
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps SMCI/X12SPI (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
SMCI/X12SPIgeneric01.07.20Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for SMCI/X12SPI.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Oct 27, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 27, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 27, 2026

Sources and claim methodology

  • Source referencesupermicro.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Supermicro BMC contains a SMCRAKP Fixed Key vulnerabilitySame smci/x12spi package
  • SourceCodester Online Food Ordering System delete_admin.php missing authenticationAlso CWE-306

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-306
Source
CVE List V5
Source checked
Oct 27, 2026
References
1 linked source
Open source record