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CVE-2021-47944

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CVE-2021-47944

Published: May 10, 2026

Modified: May 12, 2026

PUBLISHED

CVSS v3.1

7.5

HIGH

Description

memono Notepad 4.2 contains a denial of service vulnerability that allows attackers to crash the application by pasting excessively long character buffers into note fields. Attackers can generate a payload containing 350000 repeated characters and paste it twice into a new note to trigger an application crash on iOS devices.

VendorProductVersions

memono

Notepad

affected
4.2

Weaknesses (CWE)

CWE-789

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

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