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CVE-2026-39454

HIGH
8.5
CVSS Score
Published: April 20, 2026 at 08:04 AM UTC
Updated: October 26, 2026 at 09:10 PM UTC
4 products affected across 2 vendorsSkysea Client ViewSkymec IT ManagerSKYSEA Client View

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Severity
HIGH8.5
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Vendor Advisory
Source: cverecord
https://www.skyseaclientview.net/news/260420_01/
Third Party Advisory
Source: cverecord
https://jvn.jp/en/jp/JVN63376363/

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.5HIGHjpcert
Vector?

Quick Info

StatusANALYZED
CWE
CWE-276CWE-863

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