CVE-2026-20841

HIGH
2026-02-10 [email protected]
7.8
CVSS 3.1
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CVSS Vector

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

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 22:02 vuln.today
CVE Published
Feb 10, 2026 - 18:16 nvd
HIGH 7.8

Tags

Windows Command Injection Windows Notepad Microsoft

Description

Improper neutralization of special elements used in a command ('command injection') in Windows Notepad App allows an unauthorized attacker to execute code locally.

Analysis

Local code execution in Windows Notepad stems from inadequate sanitization of command metacharacters, enabling authenticated users to execute arbitrary commands through specially crafted input. The vulnerability requires user interaction and local access, making it exploitable by attackers with limited system privileges. …

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Remediation

Within 24 hours: Inventory all systems running the affected Windows Notepad version and restrict file handling practices. Within 7 days: Disable Notepad as the default handler for script files and implement application whitelisting to prevent unauthorized code execution. …

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Priority Score

39
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +39
POC: 0

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CVE-2026-20841 vulnerability details – vuln.today
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