CVE-2026-34961 — barebox ext4 Extent Parsing Out-of-Bounds Read
barebox prior to version 2026.04.0 contains out-of-bounds read vulnerabilities in ext4 extent parsing due to missing validation of the eh_entries field against buffer capacity i…
Published: 2026-05-11 · CVSS: 6.9 · CVSS 4.0
barebox prior to version 2026.04.0 contains out-of-bounds read vulnerabilities in ext4 extent parsing due to missing validation of the eh_entries field against buffer capacity in fs/ext4/ext4_common.c. Attackers can supply a malicious ext4 filesystem image via USB, SD card, or network boot to trigger heap out-of-bounds reads during boot-time filesystem parsing, potentially redirecting reads to arbitrary disk offsets.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7