Microsoft Windows LNK File clickjacking

Summaryinfo

A vulnerability was found in Microsoft Windows. It has been declared as problematic. Affected is an unknown function of the component LNK File Handler. The manipulation results in clickjacking. This vulnerability is cataloged as CVE-2025-9491. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Microsoft Windows (version now known). Affected is some unknown processing of the component LNK File Handler. The manipulation with an unknown input leads to a clickjacking vulnerability. CWE is classifying the issue as CWE-451. The user interface (UI) does not properly represent critical information to the user, allowing the information - or its source - to be obscured or spoofed. This is often a component in phishing attacks. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Microsoft Windows LNK File UI Misrepresentation Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microsoft Windows. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of .LNK files. Crafted data in an .LNK file can cause hazardous content in the file to be invisible to a user who inspects the file via the Windows-provided user interface. An attacker can leverage this vulnerability to execute code in the context of the current user. Was ZDI-CAN-25373.

The advisory is available at zerodayinitiative.com. This vulnerability is traded as CVE-2025-9491 since 08/26/2025. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $25k-$100k at the moment (estimation calculated on 03/22/2026). This vulnerability is assigned to T1566.003 by the MITRE ATT&CK project.

It is declared as attacked.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Zero-Day.cz (983) and CERT Bund (WID-SEC-2025-0592). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

• Microsoft Windows

Productinfo

Type

• Operating System

Vendor

• Microsoft

Name

• Windows

License

• commercial

Website

• Vendor: https://www.microsoft.com/
• Product: https://www.microsoft.com/en-us/windows

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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