CISA Known Exploited Vulnerability (KEV)
Microsoft Windows Scripting Engine Type Confusion Vulnerability
May 13, 2025
June 3, 2025
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Description
Access of resource using incompatible type (‘type confusion’) in Microsoft Scripting Engine allows an unauthorized attacker to execute code over a network.
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-30397
- https://www.vicarius.io/vsociety/posts/cve-2025-30397-type-confusion-vulnerability-in-microsoft-scripting-engine-detection-script
- https://www.vicarius.io/vsociety/posts/cve-2025-30397-type-confusion-vulnerability-in-microsoft-scripting-engine-mitigation-script
Weakness Enumeration
CWE-ID | CWE Name |
---|---|
CWE-843 |
Access of Resource Using Incompatible Type (‘Type Confusion’) |