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Back to active CVEs
High · CVSS 7.2CVE-2026-16521

Supermicro BMC's syslog feature contains a command injection vulnerabilityCVE-2026-16521

Answer in brief

CVE-2026-16521 records a High severity (CVSS 7.2) vulnerability in Supermicro BMC's syslog feature contains a command injection vulnerability. The current sources do not mark it as known exploited. The current feed maps SMCI/MBD-X12STW-F (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
High · CVSS 7.2
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 7.2. 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/MBD-X12STW-F (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
SMCI/MBD-X12STW-Fgeneric*Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for SMCI/MBD-X12STW-F.
  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

An OS command injection vulnerability exists because of insufficient input filtering. An attacker can inject a command payload into a BMC function; the payload may execute when the related service is restarted.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Apache Airflow SSH provider: SSHRemoteJobOperator: `environment` values are executed as shell on the remote hostAlso CWE-78
  • SMS upgrade argument reaches system() unescaped in OnCell G3150A-LTE SeriesAlso CWE-78
  • Supermicro BMC IPMI feature contains a Arbitrary Command Execution with Superuser Privileges vulnerabilityAlso CWE-78

Record context

Vulnerability class
Command Injection
EPSS
Not reported
CWE IDs
CWE-78
Source
CVE List V5
Source checked
Oct 27, 2026
References
1 linked source
Open source record