A vulnerability labeled as critical has been found in ZephyrProject Zephyr up to 4.4.x . This vulnerability affects the function ext2_verify_disk_superblock of the file subsys/fs/ext2/ext2_impl.c of the component ext2 . Executing a manipulation of the argument s_blocks_per_group/s_inodes_per_group can lead to divide by zero. The identification of this vulnerability is CVE-2026-7007 . The attack may be launched remotely. There is no exploit available. The affected component should be upgraded.