CVE-2025-30397
Scripting Engine Memory Corruption Vulnerability
- Published
- Updated
- Reserved
- Assigned by
- microsoft
Description
Access of resource using incompatible type ('type confusion') in Microsoft Scripting Engine allows an unauthorized attacker to execute code over a network.
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Microsoft Windows Scripting Engine Type Confusion Vulnerability.
- Added
- 13 May 2025
- Fix due (US federal)
- 3 Jun 2025
- Used by ransomware
- Not known
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| microsoftCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C |
| NVDNVD · Analyzed | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 27.3% · top 1.9% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
Microsoft · Windows 10 Version 1507
- affected 10.0.10240.0 – < 10.0.10240.21014
Microsoft · Windows 10 Version 1607
- affected 10.0.14393.0 – < 10.0.14393.8066
Microsoft · Windows 10 Version 1809
- affected 10.0.17763.0 – < 10.0.17763.7314
Microsoft · Windows 10 Version 21H2
- affected 10.0.19044.0 – < 10.0.19044.5854
Microsoft · Windows 10 Version 22H2
- affected 10.0.19045.0 – < 10.0.19045.5854
Microsoft · Windows 11 version 22H2
- affected 10.0.22621.0 – < 10.0.22621.5335
Microsoft · Windows 11 version 22H3
- affected 10.0.22631.0 – < 10.0.22631.5335
Microsoft · Windows 11 Version 23H2
- affected 10.0.22631.0 – < 10.0.22631.5335
Microsoft · Windows 11 Version 24H2
- affected 10.0.26100.0 – < 10.0.26100.4061
Microsoft · Windows Server 2008 R2 Service Pack 1
- affected 6.1.7601.0 – < 6.1.7601.27729
Microsoft · Windows Server 2008 R2 Service Pack 1 (Server Core installation)
- affected 6.1.7601.0 – < 6.1.7601.27729
Microsoft · Windows Server 2008 Service Pack 2
- affected 6.0.6003.0 – < 6.0.6003.23279
Microsoft · Windows Server 2008 Service Pack 2 (Server Core installation)
- affected 6.0.6003.0 – < 6.0.6003.23279
Microsoft · Windows Server 2012
- affected 6.2.9200.0 – < 6.2.9200.25475
Microsoft · Windows Server 2012 (Server Core installation)
- affected 6.2.9200.0 – < 6.2.9200.25475
Microsoft · Windows Server 2012 R2
- affected 6.3.9600.0 – < 6.3.9600.22577
Microsoft · Windows Server 2012 R2 (Server Core installation)
- affected 6.3.9600.0 – < 6.3.9600.22577
Microsoft · Windows Server 2016
- affected 10.0.14393.0 – < 10.0.14393.8066
Microsoft · Windows Server 2016 (Server Core installation)
- affected 10.0.14393.0 – < 10.0.14393.8066
Microsoft · Windows Server 2019
- affected 10.0.17763.0 – < 10.0.17763.7314
Microsoft · Windows Server 2019 (Server Core installation)
- affected 10.0.17763.0 – < 10.0.17763.7314
Microsoft · Windows Server 2022
- affected 10.0.20348.0 – < 10.0.20348.3692
Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation)
- affected 10.0.25398.0 – < 10.0.25398.1611
Microsoft · Windows Server 2025
- affected 10.0.26100.0 – < 10.0.26100.4061
Microsoft · Windows Server 2025 (Server Core installation)
- affected 10.0.26100.0 – < 10.0.26100.4061
References (4)
- Scripting Engine Memory Corruption Vulnerability (opens in a new tab)vendor-advisorypatch
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-30397 (opens in a new tab)government-resource
- https://www.vicarius.io/vsociety/posts/cve-2025-30397-type-confusion-vulnerability-in-microsoft-scripting-engine-mitigation-script (opens in a new tab)
- https://www.vicarius.io/vsociety/posts/cve-2025-30397-type-confusion-vulnerability-in-microsoft-scripting-engine-detection-script (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2025-30397)Record last updated .