CVE intelligence and bounded remediation

CVE-2020-26122 — Inspur NF5266M5 through 3.21.2 and other server M5 devices allow remote code execution via administrator privileges

High CVSS 7.2

Inspur NF5266M5 through 3.21.2 and other server M5 devices allow remote code execution via administrator privileges. The Baseboard Management Controller (BMC) program of INSPUR server is weak in checking the firmware and lacks the signature verification mechanism, the attacker who obtains the administrator's rights can control the BMC by inserting malicious code into the firmware program and bypassing the current verification mechanism to upgrade the BMC.

Severity
High
CVSS
7.2 (3.1)
Published
2020-12-07
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-347

Affected products

  • inspur / nf8480m5_firmware
  • inspur / nf8260m5_firmware
  • inspur / ns5162m5_firmware
  • inspur / ns5488m5_firmware
  • inspur / ns5484m5_firmware
  • inspur / ns5482m5_firmware

Showing 6 representative product identities from 15 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Command, code, expression, and template injection

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Check exposure

  • Trace untrusted values to process execution, interpreters, evaluators, template engines, dynamic imports, and administrative scripting features.
  • Determine whether the affected path is reachable across each trust boundary and which service account or host privilege it inherits.
  • Review configuration for optional execution features, unsafe compatibility modes, and shell invocation.

Remediate safely

  • Replace string-built commands or evaluated code with fixed operations and structured argument APIs that do not invoke a shell.
  • Use strict allowlists for operation identifiers and reject unexpected input before it reaches any interpreter.
  • Update the affected component and add inert regression tests covering metacharacters, encoding variants, and alternate request paths.

Authoritative sources

Complete CVE record and remediation plan

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