Yamaha wireless LAN router NWR100 provided by Yamaha Corporation contains an issue with insecure storage of sensitive information. Configuration files generated by the CONFIG file export function may be read by an unauthenticated attacker.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

No data.

No data.

No data.

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No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://jvn.jp/en/vu/JVNVU91027179/ cve-icon cve-icon
https://www.rtpro.yamaha.co.jp/RT/FAQ/Security/JVNVU91027179.html cve-icon cve-icon
History

Thu, 29 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 29 Oct 2026 13:00:00 +0000

Type Values Removed Values Added
Title Unauthorized Access to Sensitive Configuration Files in Yamaha NWR100 Router

Thu, 29 Oct 2026 11:45:00 +0000

Type Values Removed Values Added
Description Yamaha wireless LAN router NWR100 provided by Yamaha Corporation contains an issue with insecure storage of sensitive information. Configuration files generated by the CONFIG file export function may be read by an unauthenticated attacker.
Weaknesses CWE-922
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: jpcert

Published:

Updated: 2026-10-29T12:36:50.215Z

Reserved: 2026-10-13T04:12:31.085Z

Link: CVE-2026-109822

cve-icon Vulnrichment

Updated: 2026-10-29T12:28:43.517Z

cve-icon NVD

Status : Deferred

Published: 2026-10-29T12:17:09.773

Modified: 2026-10-29T15:45:15.310

Link: CVE-2026-109822

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-29T12:45:09Z

Weaknesses