CVE-2026-20841

CVE Enrichment

CVSS: 7.8 HIGH
EPSS: 9.01%
EPSS Percentile: 95.24%
CISA KEV: Not listed

Description

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

Technical Details

CVSS Version: 3.1
CNA / NVD Source: secure@microsoft.com
Published: 11-Feb-2026 01:16
Last Modified: 17-Jun-2026 17:17
EPSS Date: 2026-10-20
CWE: CWE-77

CVSS Vector


            CVSS:3.1                            AV:L /
                            AC:L /
                            PR:N /
                            UI:R /
                            S:U /
                            C:H /
                            I:H /
                            A:H

Affected Products / Versions

microsoft / windows_notepad
Version / affected range: * · before (exclusive) 11.2510
cpe:2.3:a:microsoft:windows_notepad:*:*:*:*:*:*:*:*

References

Last enrichment sync: 21-Oct-2026 15:10
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (1)

successfully blocked. Close behind was the Windows Notepad CVE-2026-20841 vulnerability (CVSS 7.8 High) at Picus Blue Report 2026 Finds Enterprise Defenses Block Just 37% of Post-Compromise Actions

CVE (9)

Malware (10)

Threat Actors (10)

MITRE ATT&CK (15)

Vendors (1)

Products (16)

Tools (3)

Industries (10)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.