Vulnerability · Published Feb 10, 2026 · Assigned by microsoft
CVE-2026-20841Windows Notepad App Remote Code Execution Vulnerability
High 7.8
In plain English
A high-severity command injection in Windows Notepad from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 8.9% (higher than 95% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)8.9%top 4.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC
Official 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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows Notepad | 11.0.0 – before 11.2512.26.0 |
Weakness: CWE-77 · 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