CVE-2025-30397HIGH 7.5CISA KEVEPSS p97.2%

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

Microsoft / Windows

Description

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.

Scoring

CVSS 3.17.5 (HIGH)
VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS20.87% probability of exploitation · percentile 97.2% · 2026-06-19T12:03:05Z
Published2025-05-13
Last modified2025-10-27

CISA KEV entry

Added to KEV: 2025-05-13

Underlying weaknesses· 1

CWE-843

References

  1. https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-30397
  2. https://www.vicarius.io/vsociety/posts/cve-2025-30397-type-confusion-vulnerability-in-microsoft-scripting-engine-detection-script
  3. https://www.vicarius.io/vsociety/posts/cve-2025-30397-type-confusion-vulnerability-in-microsoft-scripting-engine-mitigation-script
  4. https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-30397

1

TypeTargetConfidenceTier
WeaknessAccess of Resource Using Incompatible Type ('Type Confusion')cwe-8430%live

(incoming)1

TypeTargetConfidenceTier
KEVEntryMicrosoft Windows Scripting Engine Type Confusion Vulnerabilitykev-cve-2025-303970%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
Microsoft Windows Scripting Engine Memory Corruption Vulnerability
CVE
CVE-2025-53143
CVE
CVE-2025-53145
CVE
CVE-2025-53144
CVE
Microsoft Internet Explorer Type Confusion Vulnerability
CVE
CVE-2025-49713
Sourced from NVD + CISA KEV + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.