CVE-2025-21391
Windows Storage Elevation of Privilege Vulnerability
Windows Storage Elevation of Privilege Vulnerability
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Windows Storage Elevation of Privilege Vulnerability
Windows Storage Elevation of Privilege Vulnerability
- Record
CVE-2025-21391- CVSS 3.1
- 7.1 High
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 - Weakness
- CWE-59
- Updated
- 2026-11-02
EUVDEUVD-2025-2452
Windows Storage Elevation of Privilege Vulnerability
- Record
EUVD-2025-2452- CVSS 3.1
- 7.1 High
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 - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-hq9p-wcjc-wqxg
Windows Storage Elevation of Privilege Vulnerability
Windows Storage Elevation of Privilege Vulnerability
- Record
GHSA-hq9p-wcjc-wqxg- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H - Weakness
- CWE-59
- Updated
- 2026-11-02
CISA KEV No score
Microsoft Windows Storage Link Following Vulnerability
Microsoft Windows Storage contains a link following vulnerability that could allow for privilege escalation. This vulnerability could allow an attacker to delete data including data that results in the service being unavailable.
- Record
CVE-2025-21391- Weakness
- CWE-59
- Updated
- 2026-11-02
NVD
Windows Storage Elevation of Privilege Vulnerability
- Record
CVE-2025-21391- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H - Weakness
- CWE-59
- Updated
- 2026-11-02
Affected products
- microsoft windows
- microsoft windows 10 version 1507
- microsoft windows 10 version 1607
- microsoft windows 10 version 1809
- microsoft windows 10 version 21h2
- microsoft windows 10 version 22h2
- microsoft windows 11 version 22h2
- microsoft windows 11 version 22h3
- microsoft windows 11 version 23h2
- microsoft windows 11 version 24h2
- microsoft windows server 2016
- microsoft windows server 2016 (server core installation)
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- microsoft windows server 2019
- microsoft windows server 2019 (server core installation)
- microsoft windows server 2022
- microsoft windows server 2022, 23h2 edition (server core installation)
- microsoft windows server 2025
- microsoft windows server 2025 (server core installation)
- microsoft windows 10 1507
- microsoft windows 10 1607
- microsoft windows 10 1809
- microsoft windows 10 21h2
- microsoft windows 10 22h2
- microsoft windows 11 22h2
- microsoft windows 11 23h2
- microsoft windows 11 24h2
- microsoft windows server 2022 23h2
History
| Recorded | Changed | Sources |
|---|---|---|
| exploitation | ||
| first indexed | CVE List, EUVD, GitHub Advisories, CISA KEV, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-21391 is a high vulnerability (CVSS 7.1) in Microsoft Windows, published February 11, 2025. CISA lists it as known to be exploited, since February 11, 2025. EUVD reports exploitation since February 11, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.28%, the 83rd percentile. No source names a fixed version.