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HIGHCVE-2026-20841Published Modified CNA microsoft

CVE-2026-20841: Windows Notepad App Remote Code Execution Vulnerability

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

Metrics

CVSS v3.1
7.8
Severity
HIGH
Fixed in
11.2512.26.0
Affected Products
1

Fix available

11.2512.26.0
Patch commits
Affected packages
  • Microsoft / Windows Notepad
    < 11.2512.26.0 (from 11.0.0)
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
References
CVE-2026-20841: Windows Notepad App Remote Code Execution Vulnerability | HarborGuard CVE