CVE intelligence and bounded remediation

CVE-2017-17221 — Huawei Espace 7950 Firmware security vulnerability

High CVSS 8.8

Import Signal Tone function in Huawei eSpace 7950 V200R003C30; eSpace 8950 V200R003C00; V200R003C30 has a remote code execution vulnerability. An authenticated, remote attacker can craft and send the packets to the affected products after the Signal Tone is uploaded. Due to insufficient verification of the packets, this could be exploited to execute arbitrary code.

Severity
High
CVSS
8.8 (3.0)
Published
2018-03-09
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-20

Affected products

  • huawei / espace_7950_firmware / v200r003c30
  • huawei / espace_8950_firmware / v200r003c00
  • huawei / espace_8950_firmware / v200r003c30

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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