Vulnerability in Entropymine Deark
CVE-2021-28856
In Deark before v1.5.8, a specially crafted input file can cause a division by zero in (src/fmtutil.c) because of the value of pixelsize.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.008 (56.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
Weakness classification (CWE)
References
- fatihhcelik.github.io/posts/Division-By-Zero-Deark/ (Patch, Third Party Advisory)
- github.com/jsummers/deark/commit/62acb7753b0e3c0d3ab3c15057b0a65222313334 (Patch, Third Party Advisory)
- github.com/fuzzing2026/CVE-PoCs/tree/main/deark-CVE-2021-28856
Frequently asked questions
- What is CVE-2021-28856?
- CVE-2021-28856 is a medium-severity vulnerability in Entropymine Deark, classified under Divide By Zero. CVSS score: 5.5/10. Published 2021-04-14.
- How severe is CVE-2021-28856?
- Medium severity. CVSS v3 base score is 5.5 out of 10.