CVE-2018-3976: Canvasgfx Canvas Draw

High severity, CVSS 7.8. EPSS: 1.8% chance of exploitation in the next 30 days.

An exploitable out-of-bounds write exists in the CALS Raster file format-parsing functionality of Canvas Draw version 5.0.0.28. A specially crafted CAL image processed via the application can lead to an out-of-bounds write, overwriting arbitrary data. An attacker can deliver a CAL image to trigger this vulnerability and gain code execution.

Affected products

• Canvasgfx Canvas Draw: version 5.0.0.28 only

Published 2019-02-06. Last modified 2026-06-17.