Vulnerability Intelligence Report
CVE-2026-66109
A missing authorization vulnerability exists in SKYSEA Client View and SKYMEC IT Manager. If this vulnerability is exploited, an attacker who can log in to the Windows system on which the affected product is installed may execute arbitrary code with SYSTEM privilege.
No Active Exploit Signals
CVSS Base Score
7.8
HIGH
Exploitability:1.9
Impact Score:5.9
EPSS Probability:0.16%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-862 ↗Missing authorization
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Sky Co., LTD. | SKYSEA Client View | 0 <= Ver.21.210.01f (affected) |
| Sky Co., LTD. | SKYMEC IT Manager | 2023.225.03a (affected), 2024.005.10a (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.161%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | JPCERT/CC · CERT · Japan |
| Reserved | 2026-08-05T03:02:30 |
| Published | 2026-08-25T06:27:50 |
| Last Updated | 2026-08-25T19:02:20 |
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