CVE-2019-19315: Nalpeiron Licensing Service

High severity, CVSS 7.1. EPSS: 0.6% chance of exploitation in the next 30 days.

NLSSRV32.EXE in Nalpeiron Licensing Service 7.3.4.0, as used with Nitro PDF and other products, allows Elevation of Privilege via the \\.\mailslot\nlsX86ccMailslot mailslot.

Affected products

• Nalpeiron Licensing Service: version 7.3.4.0 only

Published 2019-12-17. Last modified 2026-06-17.