Vulnerability Intelligence Report
CVE-2026-39454
SKYSEA Client View and SKYMEC IT Manager provided by Sky Co.,LTD. configure the installation folder with improper file access permission settings. A non-administrative user may manipulate and/or place arbitrary files within the installation folder of the product. As a result, arbitrary code may be executed with the administrative privilege.
No Active Exploit Signals
CVSS Base Score
7.8
HIGH
Exploitability:1.9
Impact Score:5.9
EPSS Probability:0.11%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
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SSVC Action
—
Weaknesses (CWE)
CWE-276 ↗Incorrect default permissions
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Sky Co.,LTD. | SKYSEA Client View | Ver.21.200.07j and earlier (affected) |
| Sky Co.,LTD. | SKYMEC IT Manager | Ver.2024.005.10a and earlier (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.112%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | JPCERT/CC · CERT · Japan |
| Reserved | 2026-04-08T11:15:40 |
| Published | 2026-04-20T08:04:56 |
| Last Updated | 2026-04-20T13:28:56 |
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