CVE-2016-6247: OpenBSD

Medium severity, CVSS 5.5. EPSS: 0.4% chance of exploitation in the next 30 days.

OpenBSD 5.8 and 5.9 allows certain local users to cause a denial of service (kernel panic) by unmounting a filesystem with an open vnode on the mnt_vnodelist.

Affected products

• OpenBSD OpenBSD: version 5.8 only; version 5.9 only

Published 2017-03-07. Last modified 2026-06-17.