CSIRTS // UNIFIED SECURITY ADVISORY FEEDSYS ● ONLINE · POWERED BY INTELFUSIONS.COM

← Back to feed

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

criticalknown exploitedpublic exploitCVE-2025-30397
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
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.

CSIRTS triage

vendor: Microsoftproduct: Windows Scripting EngineRemote code execution
What
This vulnerability allows an unauthorized attacker to execute code over a network via a specially crafted URL.
Who is affected
Users of Microsoft Windows utilizing the Scripting Engine are affected.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Users should install the latest security updates for the Scripting Engine.

AI-assisted analysis generated from the source advisory — verify against the original.

⚡ Watch Windows Scripting Engine

Get an email when a new Windows Scripting Engine advisory drops — max one per day, one-click unsubscribe.

Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2025-05-13
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2025-30397

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2025-30397coverage & exploitation statusNVD · CVE.org

Recent advisories for Microsoft Windows Scripting

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

More from CISA Known Exploited Vulnerabilities