[ CVE-2025-30397 · Published 13 May 2025 ]
Microsoft Windows Scripting Engine Type Confusion Vulnerability
Exploited · CISA KEV CVSS 7.5
EPSS 27%No fix listed yet
[ Why it matters ]Priority signals
- Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2025-05-13
- EPSS: 27% chance of exploitation in the next 30 days (higher than 98% of CVEs)
[ Description ]Official description
Access of resource using incompatible type ('type confusion') in Microsoft Scripting Engine allows an unauthorized attacker to execute code over a network.
CISA: 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.
[ Fixes ]Fixes and patches
CISA required action (US federal deadline 3 Jun 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.
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.
[ References ]References
- msrc.microsoft.com/update-guide/vulnerability/CVE-2025-30397Vendor Advisory
- www.vicarius.io/vsociety/posts/cve-2025-30397-type-confusion-vulnerability-in-microsoft…ExploitThird Party Advisory
- www.vicarius.io/vsociety/posts/cve-2025-30397-type-confusion-vulnerability-in-microsoft…MitigationThird Party Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource