Description
U-Boot before 2026.10-rc3 contains an out-of-bounds write vulnerability in read_slotted_partition() that fails to validate image size against partition bounds. Attackers with physical access can supply crafted boot media with oversized headers to write past the load buffer into bootloader memory on devices without Android Verified Boot protection.
Published: 2026-09-29
Score: 4.3 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 29 Sep 2026 21:45:00 +0000

Type Values Removed Values Added
Description U-Boot before 2026.10-rc3 contains an out-of-bounds write vulnerability in read_slotted_partition() that fails to validate image size against partition bounds. Attackers with physical access can supply crafted boot media with oversized headers to write past the load buffer into bootloader memory on devices without Android Verified Boot protection.
Title U-Boot before 2026.10-rc3 Out-of-Bounds Write via Android Bootmeth Partition Read
First Time appeared Denx
Denx u-boot
Weaknesses CWE-787
CPEs cpe:2.3:a:denx:u-boot:*:*:*:*:*:*:*:*
Vendors & Products Denx
Denx u-boot
References
Metrics cvssV3_1

{'score': 4.8, 'vector': 'CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H'}

cvssV4_0

{'score': 4.3, 'vector': 'CVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

Denx U-boot
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-29T21:29:21.968Z

Reserved: 2026-08-08T16:43:04.178Z

Link: CVE-2026-71974

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-29T22:18:22.250

Modified: 2026-09-29T22:18:22.250

Link: CVE-2026-71974

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses