CVE-2026-20841
Command Injection in Windows Notepad Allows Remote Code Execution
Publication date: 2026-02-10
Last updated on: 2026-02-25
Assigner: Microsoft Corporation
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| microsoft | windows_notepad | to 11.2510 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-77 | The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a command injection flaw in the Windows Notepad App. It occurs because the application improperly neutralizes special elements used in commands, which allows an unauthorized attacker to execute arbitrary code remotely over a network.
How can this vulnerability impact me? :
The vulnerability can have a severe impact as it allows remote code execution by an attacker without requiring privileges. This means an attacker could potentially take full control of the affected system, leading to data loss, system compromise, or disruption of services.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know