CVE-2026-20841 — HIGH (7.8)

Q: What is CVE-2026-20841?

CVE-2026-20841 is a vulnerability with a CVSS score of 7.8 (HIGH). Improper neutralization of special elements used in a command ('command injection') in Windows Notepad App allows an unauthorized attacker to execute code locally.

Q: How severe is CVE-2026-20841?

CVE-2026-20841 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-20841?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows Notepad.

Vulnerability Description

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

CVSS Score

7.8

HIGH

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Microsoft	Windows Notepad	< 11.2510

Related Weaknesses (CWE)

CWE-77

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20841Vendor Advisory
https://news.ycombinator.com/item?id=46971516Issue Tracking

FAQ

What is CVE-2026-20841?

CVE-2026-20841 is a vulnerability with a CVSS score of 7.8 (HIGH). Improper neutralization of special elements used in a command ('command injection') in Windows Notepad App allows an unauthorized attacker to execute code locally.

How severe is CVE-2026-20841?

CVE-2026-20841 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-20841?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows Notepad.