CVE-2026-97860

Yamaha YMS‑VPN8 Unquoted Service Path Enabling Local SYSTEM Privilege Escalation

Published Oct 29, 2026 CVSS 4.0 · 8.4 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Yamaha
Yamaha yms-vpn8
Yamaha yms-vpn8-cp
Vendors & Products Yamaha
Yamaha yms-vpn8
Yamaha yms-vpn8-cp
Type Values Removed Values Added
Metrics ssvc

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

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

Weaknesses

Sources

Status
PUBLISHED
Assigner
jpcert
Published
Updated
Oct 29, 2026, 2:12 PM
Reserved
Oct 13, 2026, 4:12 AM
Status
Deferred
Published
Oct 29, 2026, 12:17 PM
Modified
Oct 29, 2026, 3:45 PM