What is CVE-2021-47824?

CVE-2021-47824 is a high-severity vulnerability in Splinterware Idailydiary, classified under Improper Validation of Specified Quantity in Input. CVSS score: 7.5/10. Published 2026-01-16.

How severe is CVE-2021-47824?

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

Vulnerability in Splinterware Idailydiary

CVE-2021-47824

iDailyDiary 4.30 contains a denial of service vulnerability that allows attackers to crash the application by overflowing the preferences tab name field. Attackers can paste a 2,000,000 character buffer into the default diary tab name to t…

EPSS: 0.003 (22.0th 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

Splinterware Idailydiary — versions 4.30

Weakness classification (CWE)

CWE-1284 — Improper Validation of Specified Quantity in Input

References

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

Frequently asked questions

What is CVE-2021-47824?: CVE-2021-47824 is a high-severity vulnerability in Splinterware Idailydiary, classified under Improper Validation of Specified Quantity in Input. CVSS score: 7.5/10. Published 2026-01-16.
How severe is CVE-2021-47824?: High severity. CVSS v3 base score is 7.5 out of 10.