High 8.5Published Apr 20, 2026

CVE-2026-39454SKYSEA Client View and SKYMEC IT Manager provided by Sky Co.,LTD.

Updated under an hour ago (Oct 28, 2026, 2:23 AM ET)

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It affects Sky Co.,LTD. SKYSEA Client View and 3 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Sky Co.,LTD. SKYSEA Client View

Exploited in the last 30 days

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.

CVSS: 8.5 HIGH (v4.0, CNA)CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness (CWE): CWE-276
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: jpcert
NVD analysis: Analyzed
Record last updated: Apr 20, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Sky Co.,LTD. SKYSEA Client View sky:skysea_client_view (from the name)	Ver.21.200.07j and earlier	CNA record
Sky Co.,LTD. SKYMEC IT Manager sky:skymec_it_manager (from the name)	Ver.2024.005.10a and earlier	CNA record
skygroup skymec_it_manager skygroup:skymec_it_manager	through 2024.005.10a	NVD
skygroup skysea_client_view skygroup:skysea_client_view	through 21.200.07j	NVD

References

References

https://www.skyseaclientview.net/news/260420_01/	vendor-advisory
https://jvn.jp/en/jp/JVN63376363/	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.