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CVE-2025-9491

Published: Aug 26, 2025Updated: Nov 5, 2025 Sources: CVE List NVD BDUCWE-451
NVD MITRE
7.8CVSSHIGH
EPSS Score
63.1%
Top 0.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-451

Affected Products

windows 11 23h2microsoft
On-premOS
Operating Systems / windows
WindowsMicrosoft
OS
Operating Systems / windows
WindowsMicrosoft Corp
On-premOS
Operating Systems / windows
Windows 11 23H2Microsoft Corp
On-premOS
Operating Systems / windows
microsoftcommercialUSOperating Systems
microsoft corpcommercialUSOperating Systemsaka microsoft corporation

Exploitability

Official Patch Available

References

https://www.zerodayinitiative.com/advisories/ZDI-25-148/
zerodayinitiative.com
https://msrc.microsoft.com/update-guide/advisory/ADV25258226
msrc.microsoft.com
https://www.virustotal.com/gui/file/a55789d49c395a9b16cb56b0544266d9ecee409fa3c5fead8082f28c2aff4e76
virustotal.com
and 3 more references View all →

Timeline

Published
Aug 26, 2025
Last Updated
Nov 5, 2025
News mentions
1

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