CVE-2021-47944
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductNotepad
PublishedMay 10, 2026
First seenMay 10, 2026
Weakness typeCWE-789CWE-789
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| memono Notepad | 4.2 | — |
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