CVE-2025-24857

Improper access control for volatile memory containing boot code in Universal Boot Loader (U-Boot...

7.6 HighFix available

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, IPQ8074, and IPQ9574 could allow an attacker to execute arbitrary code.

Attack profile

How easy it is to exploit

Attack vector: Physical
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.27%Up 0.2 points since Dec 11, 2025

What each source reports

CVE List Score used 7.6

Record: CVE-2025-24857
CVSS 3.1: 7.6 HighCVSS:3.1/AC:L/AV:P/A:H/C:H/I:H/PR:N/S:C/UI:N
Weakness: CWE-284
Updated: 2026-11-02

EUVDEUVD-2025-202621 7.6

Record: EUVD-2025-202621
CVSS 3.1: 7.6 HighCVSS:3.1/AC:L/AV:P/A:H/C:H/I:H/PR:N/S:C/UI:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-v72w-97m6-622r 7.6

Improper access control for volatile memory containing boot code in Universal Boot Loader (U-Boot...

Record: GHSA-v72w-97m6-622r
CVSS 3.1: 7.6 HighCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Weakness: CWE-284
Updated: 2026-11-02

NVD 7.6

Record: CVE-2025-24857
CVSS 3.1: 7.6 HighCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Weakness: CWE-284
Updated: 2026-11-04

OSV 7.6

Record: CVE-2025-24857
CVSS 3.1: 7.6 HighCVSS:3.1/AC:L/AV:P/A:H/C:H/I:H/PR:N/S:C/UI:N
Updated: 2026-11-05

OSVDEBIAN-CVE-2025-24857 7.6

Record: DEBIAN-CVE-2025-24857
CVSS 3.1: 7.6 HighCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Updated: 2026-11-05

OSVUBUNTU-CVE-2025-24857 7.6

Record: UBUNTU-CVE-2025-24857
CVSS 3.1: 7.6 HighCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Updated: 2026-11-02

Affected products

denx u-boot

Affected packages

Affected packages
Package	Affected	Fixed
`u-boot` Debian:12	before 2017.11+dfsg1-2	2017.11+dfsg1-2
`u-boot` Debian:13	before 2017.11+dfsg1-2	2017.11+dfsg1-2
`u-boot` Debian:14	before 2017.11+dfsg1-2	2017.11+dfsg1-2
`boot` Ubuntu:14.04:LTS	All versions, plus listed versions 1.3-9-1	None known
`boot` Ubuntu:16.04:LTS	All versions, plus listed versions 1.3-17-1	None known
`boot` Ubuntu:18.04:LTS	All versions, plus listed versions 1.3-20-1build11.3-20-1.1	None known
`boot` Ubuntu:20.04:LTS	All versions, plus listed versions 1.3-23-21.3-24-11.3-24-2	None known
`boot` Ubuntu:22.04:LTS	All versions, plus listed versions 1.3-27-11.3-28-2	None known
`boot` Ubuntu:24.04:LTS	All versions, plus listed versions 1.3-28.1-11.3-29-11.3-30-1	None known
`boot` Ubuntu:25.10	All versions, plus listed versions 1.3-31-1	None known
`boot` Ubuntu:26.10	All versions, plus listed versions 1.3-32-1	None known
`boot` Ubuntu:26.04:LTS	All versions, plus listed versions 1.3-31-11.3-32-1	None known

History

History
Recorded	Changed	Sources
Nov 4, 2026	facts	NVD
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-24857 is a high vulnerability (CVSS 7.6) in Denx U-boot, published December 10, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.27%, the 19th percentile. Fixed in u-boot 2017.11+dfsg1-2.