CVE-2020-6146: Gonitro Nitro Pro

High severity, CVSS 8.8. EPSS: 75.5% chance of exploitation in the next 30 days.

An exploitable code execution vulnerability exists in the rendering functionality of Nitro Pro 13.13.2.242 and 13.16.2.300. When drawing the contents of a page and selecting the stroke color from an 'ICCBased' colorspace, the application will read a length from the file and use it as a loop sentinel when writing data into the member of an object. Due to the object member being a buffer of a static size allocated on the heap, this can result in a heap-based buffer overflow. A specially crafted document must be loaded by a victim in order to trigger this vulnerability.

Affected products

• Gonitro Nitro Pro: version 13.13.2.242 only; version 13.16.2.300 only

Published 2020-09-16. Last modified 2026-06-17.