Remote Code Execution in Multiple NETGEAR Routers (CVE‑2016‑6277) Threatens Enterprise Edge Devices
What It Is
A flaw in the web‑management interface of several NETGEAR router models permits an unauthenticated attacker to inject arbitrary command‑line input via crafted form data. The router forwards this input directly to its underlying CLI, enabling remote code execution (RCE) without credential checks.
Exploitability
The vulnerability is actively exploitable; proof‑of‑concept code has been published and the vendor has confirmed the issue. CVSS v3.1 base score is 8.8 (High), reflecting the ease of remote exploitation and the potential for full system compromise.
Affected Products
- NETGEAR multiple router families (both consumer‑grade and small‑business models).
- Specific model identifiers are listed in the vendor advisory (e.g., R7000, R8000 series, etc.).
Why It Matters for Compliance & Audit Readiness
- Control‑Assurance Impact: An unpatched router defeats network‑edge access‑control policies, creating a blind spot in continuous control monitoring.
- Audit Trail: Exploitation can erase or alter logs, undermining evidence of due‑diligence required for standards such as NIST 800‑53 AC‑1, ISO 27001 A.12.4, and PCI DSS 1.2.1.
- Vendor‑Management Controls: The flaw highlights the need for a formal vendor‑risk program that tracks firmware lifecycle and patch cadence, a core component of the Trust Operations framework.
Recommended Actions
- Inventory & Prioritise: Identify all NETGEAR routers in scope and map them to the affected model list.
- Patch Immediately: Apply the latest firmware releases from NETGEAR that address CVE‑2016‑6277.
- Network Segmentation: Isolate router management interfaces from untrusted networks; enforce strict ACLs.
- Log & Monitor: Enable detailed syslog forwarding and integrate with a SIEM to detect anomalous CLI activity.
- Document Controls: Record remediation steps in your vendor‑management and change‑control registers to provide defensible evidence for auditors.
Source: https://nvd.nist.gov/vuln/detail/CVE-2016-6277