CVE-2010-2020: Freebsd

Medium severity, CVSS 6.9. EPSS: 0.9% chance of exploitation in the next 30 days.

sys/nfsclient/nfs_vfsops.c in the NFS client in the kernel in FreeBSD 7.2 through 8.1-PRERELEASE, when vfs.usermount is enabled, does not validate the length of a certain fhsize parameter, which allows local users to gain privileges via a crafted mount request.

Affected products

• Freebsd Freebsd: version 7.2 only; version 8.0 only; version 8.1-prerelease only

Published 2010-05-28. Last modified 2026-06-16.