CVE intelligence and bounded remediation

CVE-2017-18767 — Certain NETGEAR devices are affected by command injection by an authenticated user

Medium CVSS 6.8

Certain NETGEAR devices are affected by command injection by an authenticated user. This affects D7800 before 1.0.1.34, D8500 before 1.0.3.39, R6400 before 1.0.1.14, R6400v2 before 1.0.2.32, R6700 before 1.0.1.22, R6900 before 1.0.1.22, R7000 before 1.0.9.4, R7100LG before 1.0.0.32, R7300 before 1.0.0.56, R7800 before 1.0.2.36, R7900 before 1.0.2.10, R8000 before 1.0.3.24, R8300 before 1.0.2.74, and R8500 before 1.0.2.74.

Severity
Medium
CVSS
6.8 (3.1)
Published
2020-04-22
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-74

Affected products

  • netgear / d7800_firmware
  • netgear / d8500_firmware
  • netgear / r6400_firmware
  • netgear / r6700_firmware
  • netgear / r6900_firmware
  • netgear / r7000_firmware

Showing 6 representative product identities from 14 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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