Risk Letters

Exploited vulnerability

CVE-2025-30397

TLP:CLEAR

Microsoft Windows Scripting Engine Type Confusion Vulnerability

Microsoft Windows Scripting Engine contains a type confusion vulnerability that allows an unauthorized attacker to execute code over a network via a specially crafted URL.

Facts

  • Vendor: Microsoft
  • Product: Windows
  • CVSS: 7.5
  • EPSS (probability of exploitation within 30 days): 27.3 %
  • On CISA's Known Exploited Vulnerabilities list since: 13 May 2025
  • First known exploitation: 13 May 2025
  • CISA's deadline for US federal agencies: 3 June 2025
  • Weakness: CWE-843
  • First seen by Risk Letters: 13 May 2025

Members see which Nordic sectors the flaw hits, and what to do about it.

Get the full brief

Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD