known ransomware use

Microsoft Windows Internet Shortcut Files Security Feature Bypass Vulnerability

Added to KEV
2024-02-13
Federal due date
2024-03-05
Vendor
Microsoft
Product
Windows
EPSS
99.9th percentile (score 0.938, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Known
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2024-21412

CISA short description

Microsoft Windows Internet Shortcut Files contains an unspecified vulnerability that allows for a security feature bypass.

Required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.