CVE-2021-47824: Splinterware Idailydiary

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

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 trigger an application crash.

Affected products

• Splinterware Idailydiary: version 4.30 only

Published 2026-01-16. Last modified 2026-06-17.