CVE intelligence and bounded remediation

CVE-2017-18762 — Certain NETGEAR devices are affected by command injection by an unauthenticated attacker

High CVSS 8.8

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects D3600 before 1.0.0.68, D6000 before 1.0.0.68, D6100 before 1.0.0.57, R6100 before 1.0.1.16, R6900P before 1.2.0.22, R7000 before 1.0.9.10, R7000P before 1.2.0.22, R7100LG before 1.0.0.40, WNDR3700v4 before 1.0.2.88, WNDR4300v1 before 1.0.2.90, WNDR4300v2 before 1.0.0.48, WNDR4500v3 before 1.0.0.48, and WNR2000v5 before 1.0.0.58.

Severity
High
CVSS
8.8 (3.1)
Published
2020-04-22
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-74

Affected products

  • netgear / d3600_firmware
  • netgear / d6000_firmware
  • netgear / d6100_firmware
  • netgear / r6100_firmware
  • netgear / r6900p_firmware
  • netgear / r7000_firmware

Showing 6 representative product identities from 13 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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