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.

Code

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No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. May 10, 2026 · NIST NVD

   Detected

   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.

2. Jul 25, 2026 · NIST NVD

   Updated

   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.

Sources

• CVE.orgVulnerability recordCVE-2021-47944

  Official CVE identifier

  cve.org
• NIST NVDVulnerability recordCVE-2021-47944

  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 t

  nvd.nist.gov

References

• Reference · exploit-db.com
• Reference · vulncheck.com