CVE-2026-39454

Improper File Permissions Enable Arbitrary Code Execution

Published Apr 20, 2026 CVSS 4.0 · 8.5 High EPSS < 1% KEV · Not listed
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.

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
Title Improper File Permissions Enable Arbitrary Code Execution
Type Values Removed Values Added
Weaknesses CWE-863
CPEs cpe:2.3:a:skygroup:skymec_it_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:skygroup:skysea_client_view:*:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Skygroup
Skygroup skymec It Manager
Skygroup skysea Client View
Vendors & Products Skygroup
Skygroup skymec It Manager
Skygroup skysea Client View
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
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.
Weaknesses CWE-276
References
Metrics cvssV3_0

{'score': 7.8, 'vector': 'CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.5, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
jpcert
Published
Updated
Apr 20, 2026, 1:28 PM
Reserved
Apr 8, 2026, 11:15 AM
Status
Analyzed
Published
Apr 20, 2026, 9:16 AM
Modified
Oct 26, 2026, 9:10 PM