CVE-2019-19817: Gonitro Nitro Free PDF Reader

Medium severity, CVSS 5.5. EPSS: 1% chance of exploitation in the next 30 days.

The JBIG2Decode library in npdf.dll in Nitro Free PDF Reader 12.0.0.112 has a CAPPDAnnotHandlerUtils::PDAnnotHandlerDestroyData2+0x2e8a Out-of-Bounds Read via crafted Unicode content.

Affected products

• Gonitro Nitro Free PDF Reader: version 12.0.0.112 only

Published 2020-01-10. Last modified 2026-06-17.