CVE-2026-20922

HIGH
2026-01-13 [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 - 21:54 vuln.today
CVE Published
Jan 13, 2026 - 18:16 nvd
HIGH 7.8

Tags

Windows Buffer Overflow Heap Overflow Windows 10 1607 Windows 11 25h2 Windows Server 2008 Windows 10 21h2 Windows 11 23h2 Windows 10 22h2 Windows Server 2012 Windows Server 2022 Windows Server 2016 Windows Server 2019 Windows Server 2022 23h2 Windows Server 2025 Windows 10 1809 Windows 11 24h2 Microsoft

Description

Heap-based buffer overflow in Windows NTFS allows an authorized attacker to execute code locally.

Analysis

Heap-based buffer overflow in Windows NTFS allows an authorized attacker to execute code locally. [CVSS 7.8 HIGH]

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Remediation

Within 7 days: Identify all affected systems and apply vendor patches promptly. If patching is delayed, consider network segmentation to limit exposure.

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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-2026-20922 vulnerability details – vuln.today
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