CVE-2026-34962
Medium · 6.2CVSS
6.2
EPSS
0.2%
Published
May 11, 2026
CISA due date
—
The record
barebox version prior to 2026.04.0 contains a denial-of-service vulnerability in ext4 directory parsing in fs/ext4/ext4_common.c where the ext4fs_iterate_dir() function fails to validate that directory entry length values are non-zero. Attackers can supply a malicious ext4 filesystem image with a crafted directory entry containing a direntlen value of 0 to cause an infinite loop during directory listing or path resolution, resulting in the boot process hanging indefinitely.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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