CVE-2020-6116: Gonitro Nitro Pro

High severity, CVSS 7.8. EPSS: 28.4% chance of exploitation in the next 30 days.

An arbitrary code execution vulnerability exists in the rendering functionality of Nitro Software, Inc.’s Nitro Pro 13.13.2.242. When drawing the contents of a page using colors from an indexed colorspace, the application can miscalculate the size of a buffer when allocating space for its colors. When using this allocated buffer, the application can write outside its bounds and cause memory corruption which can lead to code execution. 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 2020-09-17. Last modified 2026-06-17.