CVE intelligence and bounded remediation

CVE-2019-20717 — Certain NETGEAR devices are affected by denial of service

Medium CVSS 6.5

Certain NETGEAR devices are affected by denial of service. This affects D3600 before 1.0.0.75, D6000 before 1.0.0.75, D7800 before 1.0.1.44, EX2700 before 1.0.1.52, EX6200v2 before 1.0.1.74, EX8000 before 1.0.1.180, R7500v2 before 1.0.3.38, R7800 before 1.0.2.58, RBK20 before 2.3.0.28, RBR20 before 2.3.0.28, RBS20 before 2.3.0.28, RBK50 before 2.3.0.32, RBR50 before 2.3.0.32, RBS50 before 2.3.0.32, RBS40 before 2.3.0.28, SRK60 before 2.2.1.210, SRR60 before 2.2.1.210, SRS60 before 2.2.1.210, WN2000RPTv3 before 1.0.1.34, WN3000RPv2 before 1.0.0.68, WN3000RPv3 before 1.0.2.70, WN3100RPv2 before 1.0.0.60, WNDR4300v2 before 1.0.0.58, and WNDR4500v3 before 1.0.0.58.

Severity
Medium
CVSS
6.5 (3.1)
Published
2020-04-16
CISA KEV
Not currently listed
Ecosystem
operating-system

Affected products

  • netgear / d3600_firmware
  • netgear / d6000_firmware
  • netgear / d7800_firmware
  • netgear / ex2700_firmware
  • netgear / ex6200_firmware
  • netgear / ex8000_firmware

Showing 6 representative product identities from 24 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Resource exhaustion and denial of service

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Identify attacker-influenced work factors including input size, nesting, compression, fan-out, regex cost, allocation, recursion, retries, and connection lifetime.
  • Map per-request and shared CPU, memory, disk, descriptor, thread, queue, and downstream-service limits.
  • Determine whether authentication, tenancy, quotas, and rate controls apply before expensive processing begins.

Remediate safely

  • Bound input size, nesting, expansion, work, concurrency, queue depth, retries, and execution time before resource-intensive processing.
  • Release resources on every success, error, cancellation, and timeout path and use backpressure instead of unbounded buffering.
  • Update affected components and add small deterministic tests that assert resource ceilings rather than exhausting a host.

Authoritative sources

Complete CVE record and remediation plan

The detailed catalog view below loads this exact record, its source evidence, and the full seven-phase agentic change plan.