CVE-2024-48289

Firmware crash via malformed BLE packet

Published Nov 1, 2024 · Updated Nov 4, 2024

Buffer overflow in Cypress Bluetooth SDK 3.66 allows physically proximate attackers to crash BLE device firmware with a crafted packet. The BLE Link Layer trusts a mutated LL_PAUSE_ENC_REQ header length that exceeds the packet's actual size, overflowing a buffer during processing. No authentication or user interaction is required; the crash disconnects the device and normal operation requires a reset.

CVSS severity6.5
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in Cypress Bluetooth SDK 3.66 allows physically proximate attackers to crash BLE device firmware with a crafted packet. The BLE Link Layer trusts a mutated LL_PAUSE_ENC_REQ header length that exceeds the packet's actual size, overflowing a buffer during processing. No authentication or user interaction is required; the crash disconnects the device and normal operation requires a reset.

The record

CVE
CVE-2024-48289
Published
Nov 1, 2024
Updated
Nov 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, T1499.004
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 1, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1499.004Application or System Exploitation

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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