VULNERABILITY INTELLIGENCE

CVE-2026-49431

CVSS score3.3 LOW
EPSS probability0.12%
CISA KEVNot currently listed
Published2026-08-19
Last modified2026-09-01
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Description

The ZFS_IOC_SET_PROP ioctl, used by zfs-set(8), incorrectly validated the calling user such that an unprivileged user is able to set metadata on a dataset indicating that the dataset has received properties from a zfs-recv(8) stream. Any local user can set the internal ZFS metadata flag "$hasrecvd" on datasets via ZFS_IOC_SET_PROP.

Weakness classification

  • secteam@freebsd.org: CWE-863

Primary references