Medium severity4.8NVD Advisory· Published Sep 29, 2026

CVE-2026-71974

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.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

U Boot/U Bootllm-fuzzy
Range: <2026.10-rc3

Patches

Vulnerability mechanics

References

github.com/u-boot/u-boot/blob/v2026.07/boot/bootmeth_android.cnvd
github.com/u-boot/u-boot/commit/35432ef6fe2c79ab72709966e64815a45eb55c76nvd
patch.msgid.link/[email protected]nvd
www.vulncheck.com/advisories/u-boot-before-2026.10-rc3-out-of-bounds-write-via-android-bootmeth-partition-readnvd

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cvss	0.312
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000