CVE-2023-48697

Code execution via malformed USB class data

Published Dec 5, 2023 · Updated Aug 28, 2024

Memory-safety flaws in Eclipse ThreadX USBX before 6.3.0 allow physically proximate attackers to execute code through crafted USB class data. Affected PictBridge and host-class routines process PIMA, storage, CDC ACM, ECM, audio, and hub data without sufficient pointer-lifetime and buffer-bound checks, enabling null or expired-pointer dereferences and out-of-bounds writes. Exploitation requires physical access to a device whose firmware includes an affected USBX class, and successful memory corruption grants code execution in that embedded device.

CVSS severity6.4
Medium
EPSS probability1.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory-safety flaws in Eclipse ThreadX USBX before 6.3.0 allow physically proximate attackers to execute code through crafted USB class data. Affected PictBridge and host-class routines process PIMA, storage, CDC ACM, ECM, audio, and hub data without sufficient pointer-lifetime and buffer-bound checks, enabling null or expired-pointer dereferences and out-of-bounds writes. Exploitation requires physical access to a device whose firmware includes an affected USBX class, and successful memory corruption grants code execution in that embedded device.

The record

CVE
CVE-2023-48697
Published
Dec 5, 2023
Updated
Aug 28, 2024
Vendor
The Eclipse Foundation
Product
Eclipse ThreadX USBX
Classifications
CWE-476, CWE-825, CWE-787, T1200
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 5, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 28, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 6.3.0

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

The Eclipse Foundation · Eclipse ThreadX USBXversion=< 6.3.0

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.4GitHubCVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-476NULL Pointer Dereference
CWE-825Expired Pointer Dereference
CWE-787Out-of-bounds Write
T1200Hardware Additions

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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