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OpenAdvisories
High · 7.8 Public exploit CVE-2026-20841 EUVD-2026-7307GHSA-9w4f-2qq2-5rc9

Windows Notepad App Remote Code Execution Vulnerability

Published Feb 10, 2026 · Updated Aug 19, 2026 · Assigned by microsoft

Vendor: Microsoft Product: Windows Notepad Platform: Windows

Description

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

Affected products

VendorProductAffectedFixed
Microsoft Windows Notepad 11.0.0 – < 11.2512.26.0 11.2512.26.0

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 14 repositories · most starred shown

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Advisories 3

References