CVEs / CVE-2025-9491

CVE-2025-9491: Microsoft Windows vulnerability

high 7.8 CVSS 3.1 (NVD)
EPSS 75.9% chance of exploitation in the next 30 days, higher than 99% of CVEs (1 Nov 2026)
Last changed at its sources 17 Jun 2026

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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.
The CVE record, via NVD · published 26 Aug 2025 · NVD status: Modified

Affected and fixed versions

As stated by the CVE record (from the CNA)
Product	Affected	Fixed in
Microsoft Windows	11 Enterprise 23H2 22631.4169 x64	—

Exploitation

Not in the CISA Known Exploited Vulnerabilities catalog as of 30 Oct 2026.

Severity

CVSS 3.1	7.8 high `CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H` Scored by NVD
Weakness	CWE-451

References

Sources

Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.

This product uses data from the NVD API but is not endorsed or certified by the NVD.