CVE intelligence and bounded remediation

CVE-2018-0665 — Yamaha Rt57I Firmware security vulnerability

Medium CVSS 6.8

Yamaha routers RT57i Rev.8.00.95 and earlier, RT58i Rev.9.01.51 and earlier, NVR500 Rev.11.00.36 and earlier, RTX810 Rev.11.01.31 and earlier, allow an administrative user to embed arbitrary scripts to the configuration data through a certain form field of the configuration page, which may be executed on another administrative user's web browser. This is a different vulnerability from CVE-2018-0666.

Severity
Medium
CVSS
6.8 (3.0)
Published
2019-01-09
CISA KEV
Not currently listed
Ecosystem
operating-system

Affected products

  • yamaha / rt57i_firmware
  • yamaha / rt58i_firmware
  • yamaha / nvr500_firmware
  • yamaha / rtx810_firmware

Matched remediation archetype

General vulnerability remediation

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Check exposure

  • Confirm the affected component, deployment paths, reachable interfaces, and enabled features from inventories and configuration, without probing production destructively.
  • Compare the advisory's affected conditions with the repository lockfiles, build manifests, artifacts, and runtime inventory.
  • Identify data sensitivity, trust boundaries, and privilege level for every confirmed affected deployment.

Remediate safely

  • Apply a vendor-supported fix or remove the affected component or feature; record the selected change and its source in the repository.
  • Update direct and transitive dependency locks, generated artifacts, deployment manifests, and asset inventories together.
  • Add a regression test for the documented unsafe condition using inert inputs and preserve rollback instructions.

Authoritative sources

Complete CVE record and remediation plan

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