CVE-2025-30397

Known Exploited
Scripting Engine Memory Corruption Vulnerability

Description

Access of resource using incompatible type ('type confusion') in Microsoft Scripting Engine allows an unauthorized attacker to execute code over a network.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 10.45% Top 10%
KEV Since 
Vendor Advisory microsoft.com
Affected: Microsoft Windows 10 Version 1809
Affected: Microsoft Windows Server 2019
Affected: Microsoft Windows Server 2019 (Server Core installation)
Affected: Microsoft Windows Server 2022
Affected: Microsoft Windows 10 Version 21H2
Affected: Microsoft Windows 11 version 22H2
Affected: Microsoft Windows 10 Version 22H2
Affected: Microsoft Windows Server 2025 (Server Core installation)
Affected: Microsoft Windows 11 version 22H3
Affected: Microsoft Windows 11 Version 23H2
Affected: Microsoft Windows Server 2022, 23H2 Edition (Server Core installation)
Affected: Microsoft Windows 11 Version 24H2
Affected: Microsoft Windows Server 2025
Affected: Microsoft Windows 10 Version 1507
Affected: Microsoft Windows 10 Version 1607
Affected: Microsoft Windows Server 2016
Affected: Microsoft Windows Server 2016 (Server Core installation)
Affected: Microsoft Windows Server 2008 Service Pack 2
Affected: Microsoft Windows Server 2008 Service Pack 2 (Server Core installation)
Affected: Microsoft Windows Server 2008 Service Pack 2
Affected: Microsoft Windows Server 2008 R2 Service Pack 1
Affected: Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation)
Affected: Microsoft Windows Server 2012
Affected: Microsoft Windows Server 2012 (Server Core installation)
Affected: Microsoft Windows Server 2012 R2
Affected: Microsoft Windows Server 2012 R2 (Server Core installation)
Published at:
Updated at:

References

Link Tags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-30397 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2025-30397?
CVE-2025-30397 has been scored as a high severity vulnerability.
How to fix CVE-2025-30397?
To fix CVE-2025-30397, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-30397 being actively exploited in the wild?
It is confirmed that CVE-2025-30397 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~10% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-30397?
CVE-2025-30397 affects Microsoft Windows 10 Version 1809, Microsoft Windows Server 2019, Microsoft Windows Server 2019 (Server Core installation), Microsoft Windows Server 2022, Microsoft Windows 10 Version 21H2, Microsoft Windows 11 version 22H2, Microsoft Windows 10 Version 22H2, Microsoft Windows Server 2025 (Server Core installation), Microsoft Windows 11 version 22H3, Microsoft Windows 11 Version 23H2, Microsoft Windows Server 2022, 23H2 Edition (Server Core installation), Microsoft Windows 11 Version 24H2, Microsoft Windows Server 2025, Microsoft Windows 10 Version 1507, Microsoft Windows 10 Version 1607, Microsoft Windows Server 2016, Microsoft Windows Server 2016 (Server Core installation), Microsoft Windows Server 2008 Service Pack 2, Microsoft Windows Server 2008 Service Pack 2 (Server Core installation), Microsoft Windows Server 2008 Service Pack 2, Microsoft Windows Server 2008 R2 Service Pack 1, Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation), Microsoft Windows Server 2012, Microsoft Windows Server 2012 (Server Core installation), Microsoft Windows Server 2012 R2, Microsoft Windows Server 2012 R2 (Server Core installation).
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