CVE-2024-33454Public exploit

Device reboot via corrupted Bluetooth transmit buffer

Published May 9, 2024 · Updated Feb 13, 2025

Memory corruption in ESP-IDF 5.1 allows attackers with modified firmware on an ESP32 board to trigger a reboot through Bluetooth traffic. In avdt_ad_write_req, the published reproduction replaces BT_HDR metadata and payload bytes with random values before L2CA_DataWrite processes the buffer. The demonstrated path requires source modification, a local build, and physical flashing; it does not establish remote code execution against unmodified firmware.

CVSS severity6.5
Medium
EPSS probability1.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in ESP-IDF 5.1 allows attackers with modified firmware on an ESP32 board to trigger a reboot through Bluetooth traffic. In avdt_ad_write_req, the published reproduction replaces BT_HDR metadata and payload bytes with random values before L2CA_DataWrite processes the buffer. The demonstrated path requires source modification, a local build, and physical flashing; it does not establish remote code execution against unmodified firmware.

The record

CVE
CVE-2024-33454
Published
May 9, 2024
Updated
Feb 13, 2025
Vendor
Espressif Systems
Product
ESP-IDF
Classifications
CWE-120
Attack vector
physical
Privileges
Unavailable

Timeline

How it unfolded

  1. May 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 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?

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

  1. Affected versionversion=5.1

What conditions does exploitation require?

Attack vectorphysical
Required privilegesUnavailable in this record.

What is affected?

Espressif Systems · ESP-IDFversion=5.1

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-120Classic Buffer Overflow

Public exploit references

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Technologies

Your stack

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Your stack

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