CVE intelligence and bounded remediation

CVE-2017-18773 — Certain NETGEAR devices are affected by command injection by an authenticated user

Medium CVSS 6.7

Certain NETGEAR devices are affected by command injection by an authenticated user. This affects D6100 before V1.0.0.55, D7800 before V1.0.1.24, EX6150v2 before 1.0.0.48, R6100 before 1.0.1.14, R7500 before 1.0.0.110, R7500v2 before V1.0.3.16, R7800 before V1.0.2.36, WNDR4300v1 before 1.0.2.90, WNDR4300v2 before 1.0.0.48, WNDR4500v3 before 1.0.0.48, and WNR2000v5 before 1.0.0.48.

Severity
Medium
CVSS
6.7 (3.1)
Published
2020-04-22
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-74

Affected products

  • netgear / d6100_firmware
  • netgear / d7800_firmware
  • netgear / ex6150_firmware
  • netgear / r6100_firmware
  • netgear / r7500_firmware
  • netgear / r7800_firmware

Showing 6 representative product identities from 11 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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