ICSA-25-343-01

icsaUScisa_csaf_ot

Universal Boot Loader (U-Boot) (Update A)

view advisory published 2025-12-09

Successful exploitation of this vulnerability could result in arbitrary code execution.

01

describes (1)

Related CVEs.

IDseverity exploitable
CVE-2025-24857US——
Improper access control for volatile memory containing boot code in Universal Boot Loader (U-Boot) before 2017.11 and Qualcomm chips IPQ4019, IPQ5018, IPQ5322, IPQ6018, IPQ8064, IP…
02

references

External citations — patches, advisories, analysis.

03

remediations (10)

  • MitigationU-Boot U-boot: <2017.11 installed on Johnson Controls Airwall AW-75 vers:all/*

    Johnson Controls recommend users to consider the following defensive measure: (1) Deploy Airwall in a physically secure location so an attacker can't plug in USB devices. (2) Restrict physical access to USB A ports (not the micro-USB console port which is not affected) by sealing them with epoxy or a similar material. (3) For Airwall 75 gateways running U-Boot version 2017.03 and before (version number is displayed on the console port as the Airwall gateway boots), install hotfix hf-3303 to update U-Boot. Hotfix can be downloaded from https://webhelp.tempered.io/content/topics/downloads_hotfixes.html#downloads_hotfixes__section_vw4_25x_13c

    https://webhelp.tempered.io/content/topics/downloads_hotfixes.html#downloads_hotfixes__section_vw4_25x_13c
  • MitigationU-Boot U-boot: <2017.11 installed on Qualcomm Chipset IPQ4019

    Qualcomm recommends users with the affected chips to contact support referencing CVE-2025-24857, QPSIIR-1969 or CR4082905.

    https://www.qualcomm.com/support/contact
  • MitigationU-Boot U-boot: <2017.11 installed on Qualcomm Chipset IPQ5018

    Qualcomm recommends users with the affected chips to contact support referencing CVE-2025-24857, QPSIIR-1969 or CR4082905.

    https://www.qualcomm.com/support/contact
  • MitigationU-Boot U-boot: <2017.11 installed on Qualcomm Chipset IPQ5322

    Qualcomm recommends users with the affected chips to contact support referencing CVE-2025-24857, QPSIIR-1969 or CR4082905.

    https://www.qualcomm.com/support/contact
  • MitigationU-Boot U-boot: <2017.11 installed on Qualcomm Chipset IPQ6018

    Qualcomm recommends users with the affected chips to contact support referencing CVE-2025-24857, QPSIIR-1969 or CR4082905.

    https://www.qualcomm.com/support/contact
  • MitigationU-Boot U-boot: <2017.11 installed on Qualcomm Chipset IPQ8064

    Qualcomm recommends users with the affected chips to contact support referencing CVE-2025-24857, QPSIIR-1969 or CR4082905.

    https://www.qualcomm.com/support/contact
  • MitigationU-Boot U-boot: <2017.11 installed on Qualcomm Chipset IPQ8074

    Qualcomm recommends users with the affected chips to contact support referencing CVE-2025-24857, QPSIIR-1969 or CR4082905.

    https://www.qualcomm.com/support/contact
  • MitigationU-Boot U-boot: <2017.11 installed on Qualcomm Chipset IPQ9574

    Qualcomm recommends users with the affected chips to contact support referencing CVE-2025-24857, QPSIIR-1969 or CR4082905.

    https://www.qualcomm.com/support/contact
  • FixedU-Boot

    Konsulko, the third-party maintainer of U-boot, recommends users upgrade to version v2025.4 or later and ensure the physical security of the device.

    https://ftp.denx.de/pub/u-boot/
  • FixedU-Boot U-boot: <2017.11 installed on Johnson Controls Airwall AW-75 vers:all/*

    Konsulko, the third-party maintainer of U-boot, recommends users upgrade to version v2025.4 or later and ensure the physical security of the device.

    https://ftp.denx.de/pub/u-boot/
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