Junglewise Threat Intelligence

CVE-2025-30397: Microsoft Windows Scripting Engine Type Confusion Vulnerability

CVE-2025-30397 · Severity: critical · CVSS 7.5 · Exploited in the wild · Published 2025-05-13

Technologies: Microsoft Windows 11, Microsoft Windows, Microsoft Windows 10. Vendors: Microsoft.

Executive brief

A type confusion vulnerability in the Microsoft Windows Scripting Engine allows an unauthorized attacker to execute arbitrary code over a network. Exploitation typically requires a user to visit a specially crafted URL, leading to the access of resources using incompatible types.

Affected products

  • Microsoft Windows Scripting Engine
  • Microsoft Windows 10 up to (excluding) 10.0.14393.8066, 10.0.17763.7314, 10.0.19044.5854, 10.0.19045.5854, 10.0.10240.21014
  • Microsoft Windows 11 up to (excluding) 10.0.22621.5335, 10.0.22631.5335, 10.0.26100.4061
  • Microsoft Windows Server 2008 / 2012 / 2016 / 2019 / 2022 / 2025

Timeline

  • 2025-05-13: disclosed
  • 2025-05-13: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
  • 2025-05-13: exploited: Reported as exploited in the wild at time of publication.

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