Vulnerability details
CVE-2025-30397
Actively exploited
Microsoft Windows 10Microsoft Windows 11Microsoft Windows Server
Scripting Engine Memory Corruption Vulnerability
CVSS 3.1
7.5High
Remedy
Required action (CISA): Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. (due: 2025-06-03)
Versions not listed as affected in the CVE record:
- Windows 10 Version 1507 — version 10.0.10240.21014 and later
- Windows 10 Version 1607 — version 10.0.14393.8066 and later
- Windows 10 Version 1809 — version 10.0.17763.7314 and later
- Windows 10 Version 21H2 — version 10.0.19044.5854 and later
- Windows 10 Version 22H2 — version 10.0.19045.5854 and later
- Windows 11 version 22H2 — version 10.0.22621.5335 and later
Official description
Access of resource using incompatible type ('type confusion') in Microsoft Scripting Engine allows an unauthorized attacker to execute code over a network.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.5High | 3.1 | CVEProject cvelistV5 (CNA) (microsoft) | 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 |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Microsoft | Windows 10 Version 1507 | 10.0.10240.0 ≤ v < 10.0.10240.21014 | CVEProject cvelistV5 (CNA) |
| Microsoft | Windows 10 Version 1607 | 10.0.14393.0 ≤ v < 10.0.14393.8066 | CVEProject cvelistV5 (CNA) |
| Microsoft | Windows 10 Version 1809 | 10.0.17763.0 ≤ v < 10.0.17763.7314 | CVEProject cvelistV5 (CNA) |
| Microsoft | Windows 10 Version 21H2 | 10.0.19044.0 ≤ v < 10.0.19044.5854 | CVEProject cvelistV5 (CNA) |
| Microsoft | Windows 10 Version 22H2 | 10.0.19045.0 ≤ v < 10.0.19045.5854 | CVEProject cvelistV5 (CNA) |
| Microsoft | Windows 11 Version 24H2 | 10.0.26100.0 ≤ v < 10.0.26100.4061 | CVEProject cvelistV5 (CNA) |
| Microsoft | Windows 11 version 22H2 | 10.0.22621.0 ≤ v < 10.0.22621.5335 | CVEProject cvelistV5 (CNA) |
| Microsoft | Windows 11 version 22H3 | 10.0.22631.0 ≤ v < 10.0.22631.5335 | CVEProject cvelistV5 (CNA) |
| Microsoft | Windows 11 version 23H2 | 10.0.22631.0 ≤ v < 10.0.22631.5335 | CVEProject cvelistV5 (CNA) |
| Microsoft | Windows Server 2008 R2 Service Pack 1 | 6.1.7601.0 ≤ v < 6.1.7601.27729 | CVEProject cvelistV5 (CNA) |
| Microsoft | Windows Server 2008 R2 Service Pack 1 (Server Core installation) | 6.1.7601.0 ≤ v < 6.1.7601.27729 | CVEProject cvelistV5 (CNA) |
| Microsoft | Windows Server 2008 Service Pack 2 | 6.0.6003.0 ≤ v < 6.0.6003.23279 | CVEProject cvelistV5 (CNA) |
| Microsoft | Windows Server 2008 Service Pack 2 (Server Core installation) | 6.0.6003.0 ≤ v < 6.0.6003.23279 | CVEProject cvelistV5 (CNA) |
| Microsoft | Windows Server 2012 | 6.2.9200.0 ≤ v < 6.2.9200.25475 | CVEProject cvelistV5 (CNA) |
| Microsoft | Windows Server 2012 (Server Core installation) | 6.2.9200.0 ≤ v < 6.2.9200.25475 | CVEProject cvelistV5 (CNA) |
| Microsoft | Windows Server 2012 R2 | 6.3.9600.0 ≤ v < 6.3.9600.22577 | CVEProject cvelistV5 (CNA) |
| Microsoft | Windows Server 2012 R2 (Server Core installation) | 6.3.9600.0 ≤ v < 6.3.9600.22577 | CVEProject cvelistV5 (CNA) |
| Microsoft | Windows Server 2016 | 10.0.14393.0 ≤ v < 10.0.14393.8066 | CVEProject cvelistV5 (CNA) |
| Microsoft | Windows Server 2016 (Server Core installation) | 10.0.14393.0 ≤ v < 10.0.14393.8066 | CVEProject cvelistV5 (CNA) |
| Microsoft | Windows Server 2019 | 10.0.17763.0 ≤ v < 10.0.17763.7314 | CVEProject cvelistV5 (CNA) |
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.17763.0 ≤ v < 10.0.17763.7314 | CVEProject cvelistV5 (CNA) |
| Microsoft | Windows Server 2022 | 10.0.20348.0 ≤ v < 10.0.20348.3692 | CVEProject cvelistV5 (CNA) |
| Microsoft | Windows Server 2022, 23H2 Edition (Server Core installation) | 10.0.25398.0 ≤ v < 10.0.25398.1611 | CVEProject cvelistV5 (CNA) |
| Microsoft | Windows Server 2025 | 10.0.26100.0 ≤ v < 10.0.26100.4061 | CVEProject cvelistV5 (CNA) |
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0 ≤ v < 10.0.26100.4061 | CVEProject cvelistV5 (CNA) |
References and advisories
4- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-30397 vendor-advisorypatch
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-30397 government-resource
- https://www.vicarius.io/vsociety/posts/cve-2025-30397-type-confusion-vulnerability-in-microsoft-scripting-engine-mitigation-script
- https://www.vicarius.io/vsociety/posts/cve-2025-30397-type-confusion-vulnerability-in-microsoft-scripting-engine-detection-script
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Details
- Published
- 2025-05-13
- Last updated
- 2026-02-26
- State
- Published
- Assigner (CNA)
- microsoft
- Kolun priority
- 86 · Critical
CISA KEV catalog
- Date added
- 2025-05-13
- Due date
- 2025-06-03
- Used in ransomware
- Unknown
Exploit prediction (EPSS)
27.46%
Probability of exploitation in 30 days
98%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- Active
- Technical impact
- Total
Weaknesses (CWE)
- CWE-843Access of Resource Using Incompatible Type ('Type Confusion')