What is CVE-2021-47944?

CVE-2021-47944 is a high-severity vulnerability in Memono Notepad, classified under CWE-789. CVSS score: 7.5/10. Published 2026-05-10.

How severe is CVE-2021-47944?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Memono Notepad

CVE-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 charac…

EPSS: 0.001 (16.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Memono Notepad — versions 4.2

Weakness classification (CWE)

CWE-789

References

disclosure@vulncheck.com (exploit)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2021-47944?: CVE-2021-47944 is a high-severity vulnerability in Memono Notepad, classified under CWE-789. CVSS score: 7.5/10. Published 2026-05-10.
How severe is CVE-2021-47944?: High severity. CVSS v3 base score is 7.5 out of 10.