CVE-2025-21391
Microsoft Windows Storage Link Following Vulnerability
IN CISA KEV
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.
- Vendor
- Microsoft
- Product
- Windows
- CVSS
- No score recorded (no NVD record loaded for this entry)
- CWE
- CWE-59
- Published
- Not recorded
- NVD modified
- Not recorded
CISA KEV
- Date added
- 2025-02-11
- Due date
- 2025-03-04
- Ransomware use
- Unknown
- Required action
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
EPSS
2.30% chance of exploitation in the next 30 days (percentile 83rd)
FIRST EPSS, updated 17 Oct 2026. About EPSS
CVSS is severity, EPSS is likelihood, KEV means already exploited. EPSS is a statistical probability, not a certainty: a low score does not make a bug safe, and a high one does not prove it is being exploited.
Data last updated 18 Oct 2026. Sources: NVD API 2.0, CISA KEV catalog, FIRST EPSS. Links: NVD, CISA KEV. Metadata only. ThreatWire does not host exploit code.