CVE-2025-21391
Status: AnalyzedHigh (7.1)⚠ Active exploitation
Windows Storage Elevation of Privilege Vulnerability
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- Base score: 7.1
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 2.30%
- Percentile among all scored CVEs: 83
- Score date: 10/5/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
CISA KEV — actively exploited
- Added to catalog: 2/11/2025
- Remediation due date: 3/4/2025
- Known ransomware use: Unknown
🎯 ATT&CK techniques
How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.
- Exploitation
T1068Exploitation for Privilege Escalationprivilege escalation95 %
Vulnerabilidad local (AV:L/PR:L) en Windows Storage con impacto alto en integridad y disponibilidad (I:H/A:H), permitiendo escalada de privilegios desde contexto sin privilegios. CWE-59 confirma debilidad de acceso a recursos.
Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.
🛡️ ATT&CK mitigations that cover these techniques
Affected technologies (13)
Microsoft — Windows 10 1507Microsoft — Windows 10 1607Microsoft — Windows 10 1809Microsoft — Windows 10 21h2Microsoft — Windows 10 22h2Microsoft — Windows 11 22h2Microsoft — Windows 11 23h2Microsoft — Windows 11 24h2Microsoft — Windows Server 2016Microsoft — Windows Server 2019Microsoft — Windows Server 2022Microsoft — Windows Server 2022 23h2Microsoft — Windows Server 2025
CWEs
- CWE-59
- NVD-CWE-noinfo
References
Raw JSON (NVD)
Show
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