CVE-2021-47944
HighCVSS 7.5Exploitation Probability (EPSS)
Low risk21th percentile - higher than 21% of all known CVEs
Summary
memono Notepad 4.2 contains a denial of service vulnerability that allows attackers to crash the application by pasting an excessively long character buffer into note fields. Attackers can generate a payload of 350000 repeated characters and paste it twice, causing a crash on iOS devices.
Risk Assessment
This vulnerability allows an attacker to remotely crash the application, leading to service unavailability for users and potential data loss.
Recommendation
Update memono Notepad to the latest version. If unavailable, limit the length of input data in note fields.
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Original NVD description (English source)
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.