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 trigger an application crash.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.004 (26.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 26.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.000
Affected products
- Splinterware Idailydiary — versions 4.30
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/49898 (exploit)
- www.splinterware.com/index.html (product)
- www.vulncheck.com/advisories/idailydiary-denial-of-service-poc (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.