High severity7.5NVD Advisory· Published May 10, 2026· Updated May 13, 2026

CVE-2021-47944

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.

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

www.exploit-db.com/exploits/49977nvd
www.vulncheck.com/advisories/memono-notepad-denial-of-service-via-buffer-overflownvd

News mentions

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