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TI-2026-81028 Aliases CVE-2026-16521GHSA-rwmh-x2cf-2ccg

Command injection in Supermicro BMC syslog feature

Priority LOW 35CWE-78Published · Updated

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

Supermicro MBD-X12STW-F versions from 01.02.08 are affected by an OS command injection flaw (CWE-78) caused by insufficient input filtering. An attacker with high privileges can inject a command payload into a BMC function, and the payload may execute when the related service is restarted.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00877 59th 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

VendorProductAffected versionsFixed inStatusSource
SMCIMBD-X12STW-F01.02.08 and later—No fix listedCNA
  • MBD-X12STW-F VendorSMCI Affected 01.02.08 and later Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for MBD-X12STW-F.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Timeline

  1. 2026-10-27 Threatist record created from CVE-2026-16521
  2. 2026-10-27 Alias added: GHSA-rwmh-x2cf-2ccg
  3. 2026-10-27 Priority changed: MEDIUM → LOW
  4. 2026-11-04 CISA SSVC decision points changed

References

Other 1

  • 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