CVE-2026-25174

HIGH
2026-03-10 [email protected]
7.8
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
CVE Published
Mar 10, 2026 - 18:18 nvd
HIGH 7.8

Tags

Information Disclosure Buffer Overflow Microsoft Windows Server 2022 Windows 10 1607 Windows 11 25h2 Windows 11 23h2 Windows 11 26h1 Windows Server 2025 Windows Server 2022 23h2 Windows Server 2019 Windows 10 21h2 Windows 10 1809 Windows 11 24h2 Windows Server 2012 Windows Server 2016 Windows 10 22h2 Windows

Description

Out-of-bounds read in Windows Extensible File Allocation allows an authorized attacker to elevate privileges locally.

Analysis

Windows Extensible File Allocation (exFAT) contains an out-of-bounds read vulnerability affecting Windows Server 2022, Windows 10 1607, and Windows 11 versions 23h2/25h2, enabling authenticated local users to escalate privileges with high impact on confidentiality, integrity, and availability. The vulnerability requires local access and user-level privileges to exploit, with no patch currently available. …

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Remediation

Within 24 hours: Inventory all Windows systems using Extensible File Allocation Table (exFAT) and assess exposure in high-value environments. Within 7 days: Restrict local user account privileges where operationally feasible and disable exFAT support on systems where not business-critical. …

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Priority Score

39
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +39
POC: 0

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CVE-2026-25174 vulnerability details – vuln.today
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