Medium severity5.5NVD Advisory· Published Apr 14, 2021· Updated Jun 17, 2026
CVE-2021-28856
CVE-2021-28856
Description
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.
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Affected products
2- Deark/Dearkdescription
- Range: <1.5.8
Patches
Vulnerability mechanics
References
3- fatihhcelik.github.io/posts/Division-By-Zero-Deark/nvdPatchThird Party Advisory
- github.com/jsummers/deark/commit/62acb7753b0e3c0d3ab3c15057b0a65222313334nvdPatchThird Party Advisory
- github.com/fuzzing2026/CVE-PoCs/tree/main/deark-CVE-2021-28856nvd
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