CVE-2025-24857

Arbitrary code execution via accessible boot memory

Published Dec 10, 2025 · Updated Dec 10, 2025

Improper access control in U-Boot before 2017.11 on affected Qualcomm IPQ chips allows physically proximate attackers to execute arbitrary code. The bootloader leaves volatile memory containing copied boot code accessible, allowing injected code to run in the pre-OS execution context. Physical access to a device using an affected chip is required; successful exploitation permits attacker-controlled code to run before the operating system starts.

CVSS severity7.6
High
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in U-Boot before 2017.11 on affected Qualcomm IPQ chips allows physically proximate attackers to execute arbitrary code. The bootloader leaves volatile memory containing copied boot code accessible, allowing injected code to run in the pre-OS execution context. Physical access to a device using an affected chip is required; successful exploitation permits attacker-controlled code to run before the operating system starts.

The record

CVE
CVE-2025-24857
Published
Dec 10, 2025
Updated
Dec 10, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-284
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.6MITRECVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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