CVE-2025-21391

Known Exploited Vulnerability Entry External Catalog

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Entry Details

CVE-2025-21391

Confirmed

Yes

2025-02-11 00:00 UTC

Timestamps

2025-02-11

2025-02-11

Scope

KEV entry: Microsoft Windows Storage Link Following Vulnerability | Affected: Microsoft / Windows | Description: 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. | Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. | Due date: 2025-03-04 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21391 ; https://nvd.nist.gov/vuln/detail/CVE-2025-21391

References
  • {'id': 'CVE-2025-21391', 'url': 'https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2025-21391'}

80b8baa7-88fc-442a-bedf-923fc74b833d

405284c2-e461-4670-8979-7fd2c9755a60

2026-02-02 13:24 UTC

2026-02-06 07:53 UTC

Evidence (1)
Type Source Signal Confidence Details GCVE Metadata
vendor_report cisa-kev successful_exploitation 0.80
View details 
{
  "cwes": [
    "CWE-59"
  ],
  "date_added": "2025-02-11",
  "due_date": "2025-03-04",
  "feed": "CISA Known Exploited Vulnerabilities Catalog",
  "knownRansomwareCampaignUse": "Unknown",
  "product": "Windows",
  "vendorProject": "Microsoft",
  "vulnerabilityName": "Microsoft Windows Storage Link Following Vulnerability"
}
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