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CVE-2026-46728

Denx U-boot vulnerability

8.2 HIGHPublic exploitEPSS 0.13%
  1. Published16 May 2026

Description

Das U-Boot before 2026.04 allows FIT (Flat Image Tree) signature verification bypass because hashed-nodes is omitted from a hash.

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredHigh
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Affected products

Denx U-boot≥ 2013.07 < 2026.04 · 2026.04

Remediation

Fixed in
Denx U-boot≥ 2026.04

References

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Frequently asked

Is CVE-2026-46728 being actively exploited?

CVE-2026-46728 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.13%.

How severe is CVE-2026-46728?

CVE-2026-46728 has a CVSS 3.1 base score of 8.2, rated high. EPSS estimates a 0.13% probability of exploitation.

Which products are affected by CVE-2026-46728?

Affected products include Denx U-boot.

How do I fix CVE-2026-46728?

Upgrade affected software to a fixed version, for example Denx U-boot 2026.04 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-46728 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.