CVE-2025-0373: Freebsd

Medium severity, CVSS 6.0. EPSS: 0.4% chance of exploitation in the next 30 days.

On 64-bit systems, the implementation of VOP_VPTOFH() in the cd9660, tarfs and ext2fs filesystems overflows the destination FID buffer by 4 bytes, a stack buffer overflow. A NFS server that exports a cd9660, tarfs, or ext2fs file system can be made to panic by mounting and accessing the export with an NFS client. Further exploitation (e.g., bypassing file permission checking or remote kernel code execution) is potentially possible, though this has not been demonstrated. In particular, release kernels are compiled with stack protection enabled, and some instances of the overflow are caught by this mechanism, causing a panic.

Affected products

• Freebsd Freebsd: from 14.2-RELEASE, before p1 (fixed in p1); from 14.1-RELEASE, before p7 (fixed in p7); from 13.4-RELEASE, before p3 (fixed in p3)

Published 2025-01-30. Last modified 2026-06-17.