CVE-2018-19519: Tcpdump

Medium severity, CVSS 5.5. EPSS: 2.4% chance of exploitation in the next 30 days.

In tcpdump 4.9.2, a stack-based buffer over-read exists in the print_prefix function of print-hncp.c via crafted packet data because of missing initialization.

Affected products

• Tcpdump Tcpdump: version 4.9.2 only

Published 2018-11-25. Last modified 2026-06-17.