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

7.5HIGH

Key Information:

Badges

👾 Exploit Exists🟣 EPSS 13%🦅 CISA Reported

What is CVE-2025-30397?

A type confusion vulnerability in the Microsoft Scripting Engine permits unauthorized attackers to interact with resources in an unintended manner, enabling remote code execution over a network. This flaw poses significant risks as it can allow adversaries to execute arbitrary code, potentially leading to unauthorized system access and data compromise. It is crucial for users of the affected product to take immediate steps to mitigate this vulnerability and protect their systems.

CISA has reported CVE-2025-30397

CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed CVE-2025-30397 as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace

The CISA's recommendation is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Affected Version(s)

Windows 10 Version 1507 32-bit Systems 10.0.10240.0 < 10.0.10240.21014

Windows 10 Version 1607 32-bit Systems 10.0.14393.0 < 10.0.14393.8066

Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.7314

References

EPSS Score

13% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • 👾

    Exploit known to exist

  • 🦅

    CISA Reported

  • Vulnerability published

  • Vulnerability Reserved

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