CVE-2016-7939: Tcpdump

Critical severity, CVSS 9.8. EPSS: 3.5% chance of exploitation in the next 30 days.

The GRE parser in tcpdump before 4.9.0 has a buffer overflow in print-gre.c, multiple functions.

Affected products

• Tcpdump Tcpdump: up to and including 4.8.1

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