CVE-2026-13133 Other in LINE for Windows
Attackers can execute arbitrary code by placing a malicious DLL in the installer directory, exploiting insecure DLL loading in LINE for Windows.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-13133?
CVE-2026-13133 is a high-severity vulnerability in LY Corporation LINE for Windows, published on 10 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-427
Which versions are affected by CVE-2026-13133?
How do I fix CVE-2026-13133?
No fix has been published for CVE-2026-13133 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-13133 being exploited?
There is no known exploitation of CVE-2026-13133 in the wild and no public exploit code.
Sources
Also known as GHSA-w99c-x9xf-3prr.