CVE-2020-7452: Freebsd

Critical severity, CVSS 9.1. EPSS: 1.8% chance of exploitation in the next 30 days.

In FreeBSD 12.1-STABLE before r357490, 12.1-RELEASE before 12.1-RELEASE-p3, 11.3-STABLE before r357489, and 11.3-RELEASE before 11.3-RELEASE-p7, incorrect use of a user-controlled pointer in the epair virtual network module allowed vnet jailed privileged users to panic the host system and potentially execute arbitrary code in the kernel.

Affected products

• Freebsd Freebsd: version 11.3 only; version 12.1 only

Published 2020-04-29. Last modified 2026-06-17.