CVE-2026-33243

Katalog CVE

CVSS 8.2 · High EPSS 0,12%

Kerentanan Insufficient Verification of Data Authenticity pada pengutronix barebox. Skor CVSS 3.1 8.2 (High) menurut github.com.

Deskripsi (NVD)

barebox is a bootloader. In barebox from version 2016.03.0 to before version 2026.03.1 (and the corresponding backport to 2025.09.3), an attacker could exploit a FIT signature verification vulnerability to trick the bootloader into booting different images than those that were verified as part of a signed configuration. mkimage(1) sets the hashed-nodes property of the FIT signature node to list which nodes of the FIT were hashed as part of the signing process as these will need to be verified later on by the bootloader. However, hashed-nodes itself is not part of the hash and could therefore be modified to allow booting different images than those that have been verified. This issue has been patched in barebox versions 2026.03.1 and backported to 2025.09.3.

Rincian

Terbit di NVD

20 Maret 2026

Terakhir diubah

11 September 2026

Status NVD

Analyzed

CVSS 3.1

8.2 (High), sumber github.com
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-345: Insufficient Verification of Data Authenticity

EPSS (30 hari)

0,12% peluang dieksploitasi; lebih tinggi dari 1,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/barebox/barebox/security/advisories/GHSA-3fvj-q26p-j6h4 patch · advisory vendor
• https://github.com/barebox/barebox/commit/aca01795056d51060cb096f9a1ea309361743e05 patch