CVE-2017-5486: Tcpdump

Critical severity, CVSS 9.8. EPSS: 3.4% chance of exploitation in the next 30 days.

The ISO CLNS parser in tcpdump before 4.9.0 has a buffer overflow in print-isoclns.c:clnp_print().

Affected products

• Tcpdump Tcpdump: up to and including 4.8.1

Published 2017-01-28. Last modified 2026-06-17.