A vulnerability has been identified in LineInst.exe (LINE for Windows) prior to version 26.4.0, where Msftedit.dll is loaded via a relative path without a secure DLL search path, allowing a malicious DLL placed in the installer's directory to be loaded ahead of the legitimate System32 copy.

Metrics

Attack Vector Local

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Active

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00117.

Exploitation none

Automatable no

Technical Impact total

Affected Vendors & Products

No data.

No data.

No data.

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Vendors Products
References
Link Providers
https://line.github.io/security-advisory-blog/CVE-2026-13133/ cve-icon
History

Tue, 11 Aug 2026 00:00:00 +0000

Type Values Removed Values Added
Title DLL Hijacking via Unsecure Msftedit.dll Loading in LINE for Windows

Mon, 10 Aug 2026 22:30:00 +0000

Type Values Removed Values Added
Title DLL Hijacking via Unsecured DLL Loading in LINE for Windows
Weaknesses CWE-114

Mon, 10 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-427
Metrics ssvc

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

Mon, 10 Aug 2026 08:00:00 +0000

Type Values Removed Values Added
Title DLL Hijacking via Unsecured DLL Loading in LINE for Windows
Weaknesses CWE-114

Mon, 10 Aug 2026 06:45:00 +0000

Type Values Removed Values Added
Description A vulnerability has been identified in LineInst.exe (LINE for Windows) prior to version 26.4.0, where Msftedit.dll is loaded via a relative path without a secure DLL search path, allowing a malicious DLL placed in the installer's directory to be loaded ahead of the legitimate System32 copy.
References
Metrics cvssV4_0

{'score': 8.4, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}
cve-icon MITRE

Status: PUBLISHED

Assigner: LY-Corporation

Published:

Updated: 2026-08-10T18:02:03.340Z

Reserved: 2026-06-24T06:46:44.264Z

Link: CVE-2026-13133

cve-icon Vulnrichment

Updated: 2026-08-10T18:01:58.664Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-10T23:45:04Z