CVE-2018-6921: Freebsd

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

In FreeBSD before 11.1-STABLE(r332066) and 11.1-RELEASE-p10, due to insufficient initialization of memory copied to userland in the network subsystem, small amounts of kernel memory may be disclosed to userland processes. Unprivileged authenticated local users may be able to access small amounts of privileged kernel data.

Affected products

• Freebsd Freebsd: from 11.0, before 11.1 (fixed in 11.1)

Published 2018-05-08. Last modified 2026-06-17.