CVE intelligence and bounded remediation

CVE-2020-11551 — Netgear Rbs50Y Firmware security vulnerability

Critical CVSS 9.6

An issue was discovered on NETGEAR Orbi Tri-Band Business WiFi Add-on Satellite (SRS60) AC3000 V2.5.1.106, Outdoor Satellite (RBS50Y) V2.5.1.106, and Pro Tri-Band Business WiFi Router (SRR60) AC3000 V2.5.1.106. The administrative SOAP interface allows an unauthenticated remote write of arbitrary Wi-Fi configuration data such as authentication details (e.g., the Web-admin password), network settings, DNS settings, system administration interface configuration, etc.

Severity
Critical
CVSS
9.6 (3.0)
Published
2020-05-18
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-287, CWE-330

Affected products

  • netgear / rbs50y_firmware / 2.5.1.106
  • netgear / srr60_firmware / 2.5.1.106
  • netgear / srs60_firmware / 2.5.1.106

Matched remediation archetype

Authentication bypass and missing authentication

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Check exposure

  • Map every affected endpoint and protocol path, including alternate ports, legacy routes, recovery flows, service accounts, and machine-to-machine access.
  • Confirm which deployments enable the affected authentication mode and whether the interface is reachable from untrusted networks.
  • Review session, token, credential, and proxy trust configuration without attempting account takeover.

Remediate safely

  • Apply the supported fix and centralize fail-closed authentication before protected request handling.
  • Remove default or embedded credentials, rotate affected secrets and sessions, and bind authentication decisions to the intended audience and channel.
  • Add negative tests for alternate routes, malformed or absent credentials, recovery flows, and proxy-derived identity.

Authoritative sources

Complete CVE record and remediation plan

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