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NVD Vulnerability Details :
CVE-2026-33243
Modified
More InfoOfficial Page
Source-security-advisories@github.com
View Known Exploited Vulnerability (KEV) details
Published At-20 Mar, 2026 | 23:16
Updated At-26 Mar, 2026 | 21:17

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.18.2HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Type: Secondary
Version: 3.1
Base score: 8.2
Base severity: HIGH
Vector:
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CPE Matches
denx
denx
>>u-boot>>Versions from 2013.07(inclusive) to 2026.04(exclusive)
cpe:2.3:a:denx:u-boot:*:*:*:*:*:*:*:*
denx
denx
>>u-boot>>2026.04
cpe:2.3:a:denx:u-boot:2026.04:rc1:*:*:*:*:*:*
denx
denx
>>u-boot>>2026.04
cpe:2.3:a:denx:u-boot:2026.04:rc2:*:*:*:*:*:*
denx
denx
>>u-boot>>2026.04
cpe:2.3:a:denx:u-boot:2026.04:rc3:*:*:*:*:*:*
pengutronix
pengutronix
>>barebox>>Versions from 2016.03.0(inclusive) to 2025.09.3(exclusive)
cpe:2.3:a:pengutronix:barebox:*:*:*:*:*:*:*:*
pengutronix
pengutronix
>>barebox>>Versions from 2025.10.0(inclusive) to 2026.03.1(exclusive)
cpe:2.3:a:pengutronix:barebox:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-345Secondarysecurity-advisories@github.com
CWE ID: CWE-345
Type: Secondary
Source: security-advisories@github.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://github.com/barebox/barebox/commit/aca01795056d51060cb096f9a1ea309361743e05security-advisories@github.com
Patch
https://github.com/barebox/barebox/security/advisories/GHSA-3fvj-q26p-j6h4security-advisories@github.com
Patch
Vendor Advisory
Hyperlink: https://github.com/barebox/barebox/commit/aca01795056d51060cb096f9a1ea309361743e05
Source: security-advisories@github.com
Resource:
Patch
Hyperlink: https://github.com/barebox/barebox/security/advisories/GHSA-3fvj-q26p-j6h4
Source: security-advisories@github.com
Resource:
Patch
Vendor Advisory
Change History
0Changes found
Details not found