CVE-2024-21412KEV · OVERDUECWE-693

Microsoft Windows Internet Shortcut Files Security Feature Bypass Vulnerability

High · published February 13, 2024

Patch now

Confirmed exploited, and the score agrees

CVSS calls it high at 8.1. It is confirmed in active exploitation. It sits in the 99.9th percentile for exploit probability.

964
days past CISA
deadline
CVSS v3.1
8.1
EPSS
99%
Percentile
99.9
In the wild
Confirmed
What it is

⚡ A sneaky flaw in Internet Shortcut Files could let attackers bypass security features without breaking a sweat! 🔥 Think of this as a mischievous delivery person who is allowed to drop off packages without checking for ID — they could deliver anything, even a parcel with a dangerous surprise inside! An attacker could exploit this vulnerability to trick users into executing malicious files, leading to unauthorized access, data breaches, or worse. It's a potentially devastating situation that could compromise sensitive information and systems.

Put simply

Think of this as a mischievous delivery person who is allowed to drop off packages without checking for ID — they could deliver anything, even a parcel with a dangerous surprise inside! This vulnerability allows an attacker to create Internet Shortcut Files that can bypass security restrictions, executing commands that should be blocked under normal circumstances.

What to do

An attacker could exploit this vulnerability to trick users into executing malicious files, leading to unauthorized access, data breaches, or worse. It's a potentially devastating situation that could compromise sensitive information and systems. Update your systems immediately to ensure you're using the latest security patches to address this vulnerability. Educate users about the risks of opening unknown shortcut files and consider implementing additional file validation measures. You've got this! With a few proactive steps, you’ll keep your digital castle safe and sound. 🛡️

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.99410 · 99.9th percentile
Weakness
CWE-693 · Protection Mechanism Failure
Published
2024-02-13T23:15Z
KEV added
2024-02-13 · due 2024-03-05
Affected products (9)
ProductVersionsFixed in
microsoft/windows_10_1809< 10.0.17763.545810.0.17763.5458
microsoft/windows_10_21h2< 10.0.19044.404610.0.19044.4046
microsoft/windows_10_22h2< 10.0.19045.404610.0.19045.4046
microsoft/windows_11_21h2< 10.0.22000.277710.0.22000.2777
microsoft/windows_11_22h2< 10.0.22621.315510.0.22621.3155
microsoft/windows_11_23h2< 10.0.22631.315510.0.22631.3155
microsoft/windows_server_2019< 10.0.17763.545810.0.17763.5458
microsoft/windows_server_2022< 10.0.20348.232210.0.20348.2322
microsoft/windows_server_2022_23h2< 10.0.25398.70910.0.25398.709
References (3)
EPSS history
Timeline
  • 13 FEB 18:02Z
    Internet Shortcut Files Security Feature Bypass Vulnerability
    cvelistv5
  • 13 FEB 00:00Z
    Added to CISA KEV — remediate by Mar 5
    kev