CVE-2025-70293

An issue was discovered in Denx U-Boot before 2026.04. An integer overflow vulnerability exists in function ext4fs_get_bgdtable, the size calculation can lead to under allocation and this underallocated buffer will be used in memcpy() which could lead to arbitrary code execution, a denial of service, or other unspecified impacts.

Scoring

Severity

CRITICAL

CVSS base score

9.8

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS probability

0.53%

Published

2026-08-26

Last modified

2026-09-01

Affected products

• n/a n/a

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