CVE intelligence and bounded remediation

CVE-2019-16649 — Supermicro X11Dai-N Firmware security vulnerability

Critical CVSS 10

On Supermicro H11, H12, M11, X9, X10, and X11 products, a combination of encryption and authentication problems in the virtual media service allows capture of BMC credentials and data transferred over virtual media devices. Attackers can use captured credentials to connect virtual USB devices to the server managed by the BMC.

Severity
Critical
CVSS
10 (3.1)
Published
2019-09-21
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-287, CWE-326, CWE-522

Affected products

  • supermicro / x11dai-n_firmware / 1.71.5
  • supermicro / x11dac_firmware / 1.71.5
  • supermicro / x11dph-tq_firmware / 1.71.5
  • supermicro / x11dph-i_firmware / 1.71.5
  • supermicro / x11dph-t_firmware / 1.71.5
  • supermicro / x11dps-re_firmware / 1.71.5

Showing 6 representative product identities from 338 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Authentication bypass and missing authentication

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Check exposure

  • Map every affected endpoint and protocol path, including alternate ports, legacy routes, recovery flows, service accounts, and machine-to-machine access.
  • Confirm which deployments enable the affected authentication mode and whether the interface is reachable from untrusted networks.
  • Review session, token, credential, and proxy trust configuration without attempting account takeover.

Remediate safely

  • Apply the supported fix and centralize fail-closed authentication before protected request handling.
  • Remove default or embedded credentials, rotate affected secrets and sessions, and bind authentication decisions to the intended audience and channel.
  • Add negative tests for alternate routes, malformed or absent credentials, recovery flows, and proxy-derived identity.

Authoritative sources

Complete CVE record and remediation plan

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