Actively exploited · Published Feb 11, 2025 · Assigned by microsoft
CVE-2025-21391Windows Storage Elevation of Privilege Vulnerability
High 7.1 Exploited
In plain English
A high-severity security flaw in Windows 10 Version 1507 from Microsoft. Attackers are actively exploiting it in the wild (listed by CISA on February 11, 2025). The chance it is exploited in the next 30 days is estimated at 2.3% (higher than 83% of all known vulnerabilities). Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA guidance
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Federal agencies must remediate by Mar 4, 2025.
Official description
Windows Storage Elevation of Privilege Vulnerability
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 Version 1507 | 10.0.10240.0 – before 10.0.10240.20915 |
| Microsoft | Windows 10 Version 1607 | 10.0.14393.0 – before 10.0.14393.7785 |
| Microsoft | Windows 10 Version 1809 | 10.0.17763.0 – before 10.0.17763.6893 |
| Microsoft | Windows 10 Version 21H2 | 10.0.19044.0 – before 10.0.19044.5487 |
| Microsoft | Windows 10 Version 22H2 | 10.0.19045.0 – before 10.0.19045.5487 |
| Microsoft | Windows 11 version 22H2 | 10.0.22621.0 – before 10.0.22621.4890 |
| Microsoft | Windows 11 version 22H3 | 10.0.22631.0 – before 10.0.22631.4890 |
| Microsoft | Windows 11 Version 23H2 | 10.0.22631.0 – before 10.0.22631.4890 |
| Microsoft | Windows 11 Version 24H2 | 10.0.26100.0 – before 10.0.26100.3194 |
| Microsoft | Windows Server 2016 | 10.0.14393.0 – before 10.0.14393.7785 |
| Microsoft | Windows Server 2016 (Server Core installation) | 10.0.14393.0 – before 10.0.14393.7785 |
| Microsoft | Windows Server 2019 | 10.0.17763.0 – before 10.0.17763.6893 |
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.17763.0 – before 10.0.17763.6893 |
| Microsoft | Windows Server 2022 | 10.0.20348.0 – before 10.0.20348.3207 |
| Microsoft | Windows Server 2022, 23H2 Edition (Server Core installation) | 10.0.25398.0 – before 10.0.25398.1425 |
| Microsoft | Windows Server 2025 | 10.0.26100.0 – before 10.0.26100.3194 |
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0 – before 10.0.26100.3194 |
Weakness: CWE-59 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:F/RL:O/RC:C
References
- Windows Storage Elevation of Privilege Vulnerability vendor-advisory, patch
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-21391 government-resource