CVE-2018-16227: Apple Mac OS X

High severity, CVSS 7.5. EPSS: 6.8% chance of exploitation in the next 30 days.

The IEEE 802.11 parser in tcpdump before 4.9.3 has a buffer over-read in print-802_11.c for the Mesh Flags subfield.

Affected products

• Apple Mac OS X: before 10.15.2 (fixed in 10.15.2)
• Debian Debian Linux: version 8.0 only; version 9.0 only; version 10.0 only
• Fedoraproject Fedora: version 29 only; version 30 only; version 31 only
• Opensuse Leap: version 15.0 only; version 15.1 only
• Red Hat Enterprise Linux: version 7.0 only; version 8.0 only
• Tcpdump Tcpdump: before 4.9.3 (fixed in 4.9.3)

Published 2019-10-03. Last modified 2026-06-17.