YMS-VPN8 and YMS-VPN8-CP provided by Yamaha Corporation register Windows services with unquoted file paths. A user who has write permissions on the system drive may be able to execute arbitrary code with SYSTEM privileges.

Metrics

Attack Vector Local

Attack Complexity Low

Privileges Required High

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

Attack Vector Local

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact total

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/jp/JVN30675482/ cve-icon cve-icon
https://www.rtpro.yamaha.co.jp/RT/FAQ/Security/JVN30675482.html cve-icon cve-icon
History

Thu, 29 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

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

Type Values Removed Values Added
Title Yamaha YMS‑VPN8 Unquoted Service Path Enabling Local SYSTEM Privilege Escalation

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

Type Values Removed Values Added
Description YMS-VPN8 and YMS-VPN8-CP provided by Yamaha Corporation register Windows services with unquoted file paths. A user who has write permissions on the system drive may be able to execute arbitrary code with SYSTEM privileges.
Weaknesses CWE-428
References
Metrics cvssV3_0

{'score': 6.7, 'vector': 'CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.4, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: jpcert

Published:

Updated: 2026-10-29T14:12:18.004Z

Reserved: 2026-10-13T04:12:29.398Z

Link: CVE-2026-97860

cve-icon Vulnrichment

Updated: 2026-10-29T14:12:01.542Z

cve-icon NVD

Status : Deferred

Published: 2026-10-29T12:17:14.577

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

Link: CVE-2026-97860

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-29T13:15:15Z

Weaknesses