CSIRTS // UNIFIED SECURITY ADVISORY FEEDSYS ● ONLINE · POWERED BY INTELFUSIONS.COM

← Back to feed

CVE-2025-21391: Microsoft Windows Storage Link Following Vulnerability

criticalknown exploitedCVE-2025-21391
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
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.

CSIRTS triage

vendor: Microsoftproduct: Windows StoragePrivilege escalationOther
What
Windows Storage contains a link following vulnerability that could allow for privilege escalation.
Who is affected
Users of Microsoft Windows with the affected Storage component.
Urgency
Remediation is critical as the vulnerability is actively exploited and can lead to severe consequences.
Action
Apply the latest updates for Microsoft Windows to mitigate this vulnerability.

AI-assisted analysis generated from the source advisory — verify against the original.

⚡ Watch Windows Storage

Get an email when a new Windows Storage advisory drops — max one per day, one-click unsubscribe.

Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2025-02-11
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2025-21391

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2025-21391coverage & exploitation statusNVD · CVE.org

More from CISA Known Exploited Vulnerabilities