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CVE-2026-71974

MediumCVSS 4.3 / 10
Published Sep 29, 2026·Last modified Sep 30, 2026
Affected Components(497)
u-boot/u-boot
2011.12-rc3
u-boot/u-boot
2012.10-rc3
u-boot/u-boot
LABEL_2003_06_27_2340
1 / 166
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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Risk Scores
Base Score
4.3

The vulnerability requires physical access to the device to be exploited. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability.

Threat Intelligence
0.7

Limited exploitation activity has been observed. Close monitoring and planned remediation are recommended.

EPSS
0.18%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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