CVE-2026-69665

SYSTEM code execution via permissive installed files

Published Aug 25, 2026 · Updated Aug 25, 2026

Incorrect default permissions in affected SKYSEA Client View and SKYMEC IT Manager releases allow local users to execute code as SYSTEM. During installation, improper access permissions are assigned to installed files; Sky has not disclosed affected paths, ACL entries, or the privileged loading sequence. The attack requires a logged-in Windows user and affects SKYSEA Client View 21.300.12g and earlier and SKYMEC IT Manager 2025.205.08a and earlier.

CVSS severity8.5
High
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect default permissions in affected SKYSEA Client View and SKYMEC IT Manager releases allow local users to execute code as SYSTEM. During installation, improper access permissions are assigned to installed files; Sky has not disclosed affected paths, ACL entries, or the privileged loading sequence. The attack requires a logged-in Windows user and affects SKYSEA Client View 21.300.12g and earlier and SKYMEC IT Manager 2025.205.08a and earlier.

The record

CVE
CVE-2026-69665
Published
Aug 25, 2026
Updated
Aug 25, 2026
Vendor
Sky Co., Ltd.
Product
SKYMEC IT Manager
Classifications
CWE-276, CAPEC-1, T1574.005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=Ver.2025.205.08a

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Sky Co., Ltd. · SKYMEC IT Managerversion=0 <=Ver.2025.205.08a
Sky Co., Ltd. · SKYSEA Client Viewversion=0 <=Ver.21.300.12g

Published CVSS scores

8.5JPCERT/CCCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.8JPCERT/CCCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-276Incorrect Default Permissions
CAPEC-1Accessing Functionality Not Properly Constrained by ACLs
T1574.005Hijack Execution Flow: Executable Installer File Permissions Weakness

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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