CVE-2024-21412: Microsoft Windows Internet Shortcut Files Security Feature Bypass Vulnerability

CVE-2024-21412 · Severity: critical · CVSS 8.1 · Exploited in the wild · Published 2024-02-13

Microsoft Windows Internet Shortcut Files (.url) contain a security feature bypass vulnerability that allows an attacker to bypass Mark of the Web (MotW) protections. An attacker can exploit this by crafting a malicious file that, when opened by a user, executes without the expected security warnings.

Technologies: Microsoft Windows. Vendors: Microsoft.

Quick answers

Is CVE-2024-21412 exploited in the wild?
Yes. CVE-2024-21412 is known to be exploited in the wild, first recorded on 13 February 2024. Treat it as urgent.
How severe is CVE-2024-21412?
Critical severity, with a CVSS score of 8.1, published 13 February 2024.
Which products and versions are affected?
Microsoft Windows 10 1809 up to (excluding) 10.0.17763.5458; Microsoft Windows 10 21H2 up to (excluding) 10.0.19044.4046; Microsoft Windows 10 22H2 up to (excluding) 10.0.19045.4046; Microsoft Windows 11 21H2 up to (excluding) 10.0.22000.2777; and 5 more.
Is there a fix for CVE-2024-21412?
A patch was published on 2024-02-13. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2024-21412 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2024-21412?
Check whether you run Microsoft Windows. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Microsoft Windows 10 1809 up to (excluding) 10.0.17763.5458
  • Microsoft Windows 10 21H2 up to (excluding) 10.0.19044.4046
  • Microsoft Windows 10 22H2 up to (excluding) 10.0.19045.4046
  • Microsoft Windows 11 21H2 up to (excluding) 10.0.22000.2777
  • Microsoft Windows 11 22H2 up to (excluding) 10.0.22621.3155
  • Microsoft Windows 11 23H2 up to (excluding) 10.0.22631.3155
  • Microsoft Windows Server 2019 up to (excluding) 10.0.17763.5458
  • Microsoft Windows Server 2022 up to (excluding) 10.0.20348.2322
  • Microsoft Windows Server 2022 23H2 up to (excluding) 10.0.25398.709

Timeline

  • 2024-02-13: disclosed
  • 2024-02-13: patched
  • 2024-02-13: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
  • 2024-02-13: exploited: Reported as exploited in the wild at time of publication.

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